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Tapeworm eggs Stock Photos and Images
RF2JJNX1F–Hydatid cyst caused by tapeworm parasite Echinococcus granulosus, light photomicrograph, X40
RF2C7XRTG–Human Intestinal Parasites. Illustration explain the parasites in human small intestine from cause of eating infected meat or parasites eggs in meat
RF2ADJFEG–Male and female Ascaris Lumbriocodes parasites in lab containers on a table in a microbiology laboratory and some people in white coat on the backgoru
RF2RM4X77–3D illustration of a detailed flea: SEM Electron Microscope Replica in orange color, realistic, isolated
RF2EHC0Y0–Eggs of tapeworms: Taenia solium (left), Taenia saginata (center) and Diphyllobothrium (right). Illustration of the 19th century. Germany. White background.
RM2A2NK71–Taenia hydatigena, Print, Taenia hydatigena (thin-necked bladderworm, causative agent of cysticercosis) is one of the adult forms of the canine and feline tapeworm. This infection has a worldwide geographic distribution. Humans with taeniasis can infect other humans or animal intermediate hosts by eggs and gravid proglottids passed in the feces
RMM1HACC–Photograph of a gravid proglottid (the tapeworm segment containing eggs) from a pork tapeworm (Taenia solium) with injected India ink to show the number of primary lateral uterine branches, 1979. Image courtesy CDC. ()
RMPG0KGT–. The dog as a carrier of parasites and diseases. Dogs as carriers of disease; Dogs. PAKASITES AND PARASITIC DISEASES OE DOGS 29 segments are often seen and referred to as rectal worms or pin worms. The common double-pored tapeworm has a larval stage in fleas and the biting Hce of dogs. The fleas become infected while they are flea larvae feeding on the organic matter in trash, the larval fleas swallow- ing the tapeworm eggs in this trash. Biting lice swallow the eggs while feeding on the contaminated sldn of the dog. In these insects the tapeworm eggs hatch and the escaping embryo develops to
RF2R766PT–Proglottid (body unit) of a tapeworm Taenia saginata, computer illustration. Tapeworms are a type of flatworm that can parasitize animal and human int
RMRE0DFN–. Diseases of domesticated birds. Poultry; Poultry; Birds. INTERNAL PAEASITES 185 acteristic symptoms. When the bird is very heavily infested, gas bubbles are observed in the droppings, and remain visible for some time. Segments of tapeworms may be found in the feces by careful search, and microscopic examination may be utilized for detecting the presence of tapeworm eggs. Tapeworm infestation in geese has been reported in Germany as causing very marked nervous symptoms. The birds walk very lit- tle and assume an upright position like that of the penguin. Morbid anatomy. In excessive infestati
RF2B927E7–Taenia hydatigena, Print, Taenia hydatigena (thin-necked bladderworm, causative agent of cysticercosis) is one of the adult forms of the canine and feline tapeworm. This infection has a worldwide geographic distribution. Humans with taeniasis can infect other humans or animal intermediate hosts by eggs and gravid proglottids passed in the feces., Reimagined by Gibon, design of warm cheerful glowing of brightness and light rays radiance. Classic art reinvented with a modern twist. Photography inspired by futurism, embracing dynamic energy of modern technology, movement, speed and revolutionize
RMT1HBHW–Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattl00mous Year: 1905 Fig. 36. — Eggs of pork- measle tapeworm {Tcsnia sol'kwi) : a, with primi- tive vitelline membrane ; 6, without primitive vitel- line membrane, but wdth striated embry ophore. X 450. (After Leuckart.) cysticerci, but the uncertainty in this respect should prevent such meat being consumed. The cysticerci are killed at a temperature of 125° to 130° Fahr. Lesions. The lesions are represented by cysts alone—i.e., by semi-transparent bladders, each of which contains a scolex or head armed
RMMCKBM3–. Fig. 137.—Small and large hooks of (A) Tcenia marginata, (B) T. serrata, and (C) T. coenurus, a, Small hooks ; 6, large hooks, x 480. (After Deffke.) egg, produced by the adult tapeworm in the intestine of dogs. These eggs, containing a six-hooked embryo, escape from the dog with the
RM2KA0WR4–Antique engraved illustration of the tapeworm. Vintage illustration of the cestoda. Old engraved picture. Book illustration published 1907. Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes). Most of the species—and the best-known—are those in the subclass Eucestoda; they are ribbon-like worms as adults, known as tapeworms. Their bodies consist of many similar units known as proglottids—essentially packages of eggs which are regularly shed into the environment to infect other organisms. Species of the other subclass, Cestodaria, are mainly fish infecting parasites.
RF2ADJH48–female scientist's hand holding a cointainer with parasite Tenia Saginata in a microbiology laboratory
RM2A2NK6Y–Taenia hydatigena, Print, Taenia hydatigena (thin-necked bladderworm, causative agent of cysticercosis) is one of the adult forms of the canine and feline tapeworm. This infection has a worldwide geographic distribution. Humans with taeniasis can infect other humans or animal intermediate hosts by eggs and gravid proglottids passed in the feces
RMK1F733–Under a high magnification of 400X, this photomicrograph revealed the presence of a cestode, Diphyllobothrium latum, or ?broad? tapeworm, egg, which is described as oval or ellipsoidal, and range in size from 55{micro}m to 75{micro}m by 40{micro}m to 50{micro}m. There is an operculum at one end that can be inconspicuous, and at the opposite (abopercular) end is a small knob that can be barely discernible. The eggs are passed in the stool unembryonated. <b><u>Clinical Features:</u></b>. Image courtesy CDC/Dr. Mae Melvin, 1979.
RMPG0KCH–. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. DWARF TAPEWORM 243 by the armed head, and become adult. It is said that eggs of this parasite can be found in the faeces within a month after an egg of the preceding generation has been swallowed. Self- infection with these eggs rarely occurs, since the eggs will not develop unless acted upon by the gastric juices. There is still room for doubt as to whether an insect is not commonly involved as an intermediate host as in other species of Hymenolepis; in fact, several investigators have found cysticerco
RMRD9K97–. The dog as a carrier of parasites and diseases. Dogs as carriers of disease; Dogs. PAKASITES AND PARASITIC DISEASES OE DOGS 29 segments are often seen and referred to as rectal worms or pin worms. The common double-pored tapeworm has a larval stage in fleas and the biting Hce of dogs. The fleas become infected while they are flea larvae feeding on the organic matter in trash, the larval fleas swallow- ing the tapeworm eggs in this trash. Biting lice swallow the eggs while feeding on the contaminated sldn of the dog. In these insects the tapeworm eggs hatch and the escaping embryo develops to
RF2B927E9–Taenia hydatigena, Print, Taenia hydatigena (thin-necked bladderworm, causative agent of cysticercosis) is one of the adult forms of the canine and feline tapeworm. This infection has a worldwide geographic distribution. Humans with taeniasis can infect other humans or animal intermediate hosts by eggs and gravid proglottids passed in the feces., Reimagined by Gibon, design of warm cheerful glowing of brightness and light rays radiance. Classic art reinvented with a modern twist. Photography inspired by futurism, embracing dynamic energy of modern technology, movement, speed and revolutionize
RMRWWE59–Elements of biology, with special Elements of biology, with special reference to their rôle in the lives of animals elementsofbiolog00buch Year: 1933 3^4 ELEMENTS OF BIOLOGY adult stage in the human intestine only. Such strictly limited adap- tations are frequently associated with degenerative structural changes. The tapeworm, one of the phylum Platyhelminthes, does EMERGENT FORM PROGLOTTID TESTES GENITAL PORE OVARY CYSTICERCUS UTERUS DISTENDED WITH RIPE EGGS FREE EMBRYO FERTILIZED EGG Fig. 218.—Diao^rammatic representation of the life cycle of the human tape worm, Tcenia solium. (Partly a
RMMCMPPY–. Fig. 137.—Small and large hooks of (A) Tcenia marginata, (B) T. serratn, and (C) T. ca'Hurus. a, Small hooks ; h, large hooks, x 480. (After Deffke.) egg, produced by the adult tapeworm in the intestine of dogs. These eggs, containing a six-hooked embryo, escape from the dog with the
RF2ADJD9P–Some parasites in lab containers on a table in a microbiology laboratory and some people in white coat on the background
RMPG0F1K–. Agricultural zoology. Zoology. 234 ZOOLOGY. of a suitable host, the joint and the egg-shells, or the latter only, as the case may be, are digested in the stomach or intestine, so that the larvse are set free. These (Fig. 137) are spherical, glass-like, of micro- scopic size, as might be expected, and bear three pairs. Fig. 136.—The Common Tapeworm (TfEwia officindlis) : a, head and neck, strongly magnified; J}, joints, natural size; c, eggs, strongly magnified. of booklets, by means of which they quickly perforate the wall of the gut, and make a way through the tissues of the host. They may
RM2AG1A2W–. Sanitary entomology; the entomology of disease, hygiene and sanitation. ). Neumann, however, regards the fleas as most important. Theripe proglottids which contain the eggs of the tapeworm, by their ownmovement, pass through the hosts anus and get into the fur where theybecome partly dried and disintegrated and fall to the ground. Part of 356 SANITARY ENTOMOLOGY the segments, the oncospheres, are released by the disintegration and arethen ingested by the flea larva or the louse. Sonsino contended that theadult flea could not ingest the egg of this worm and Joycux (1916) hasdemonstrated this
RMT1HPB4–Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattl00mous Year: 1905 284 DISEASES OF THE LlVEH. Hosts. Dog, dingo, jackal, wolf. Life history. Starting with the adult tapeworm (Fig. 124) in the small intestine of the dog or wolf, the eggs are scattered over the ground and are swallowed by the intermediate host with the fodder or water. Upon arriving in the stomach the egg-shell is destroyed, and the six- FiG. 123.—Portion of the intestine of a dog infested with the adult hj'datid tapeworm [Tcenia ecliinococcus, natural size. (After Ostertag, 1895.)
![. Fig. 140.—Portion of the liver of a lamb which died nine days after feeding with eggs of the marginate tapeworm [Tcsnia marginafa), with numerous "scars," due to young parasites. (After Curtice.) end of the tubes. The embryo can first be seen about four days after infection. The " scars " (Figs. 140 and 141) described in the liver of Stock Photo](https://c8.alamy.com/comp/MCKBKP/fig-140portion-of-the-liver-of-a-lamb-which-died-nine-days-after-feeding-with-eggs-of-the-marginate-tapeworm-tcsnia-marginafa-with-numerous-quotscarsquot-due-to-young-parasites-after-curtice-end-of-the-tubes-the-embryo-can-first-be-seen-about-four-days-after-infection-the-quot-scars-quot-figs-140-and-141-described-in-the-liver-of-MCKBKP.jpg ". Fig. 140.—Portion of the liver of a lamb which died nine days after feeding with eggs of the marginate tapeworm [Tcsnia marginafa), with numerous "scars," due to young parasites. (After Curtice.) end of the tubes. The embryo can first be seen about four days after infection. The " scars " (Figs. 140 and 141) described in the liver of Stock Photo")
RMMCKBKP–. Fig. 140.—Portion of the liver of a lamb which died nine days after feeding with eggs of the marginate tapeworm [Tcsnia marginafa), with numerous "scars," due to young parasites. (After Curtice.) end of the tubes. The embryo can first be seen about four days after infection. The " scars " (Figs. 140 and 141) described in the liver of
RMPG0KCX–. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. BEEF TAPEWORM 239 Dibothriocephalidse, in which the head is flat and possesses two slitlike suckers (Fig. 87C and D). The latter family also differs from the Tseniidse in having eggs with lids like those of the flukes (Fig. 88A), and without developed embryos when passed in the faeces. Family Tseniidae Beef Tapeworm. — The commonest human tapeworm in most parts of the world is the beef tapeworm, Taenia saginata. The adult of this species as it occurs in the human small intestine consists of over 1000 pr
RM2AFM952–. Introduction to zoology; a guide to the study of animals, for the use of secondary schools;. ever FIG. 145. - Distomum,the liver-fluke. Nat.size. Excr., excretorypore; mo., mouth; rep?.,reproductive aperture ;-srA1/*., posterior sucker.From Parker and Has-well. 156 ZOOLOGY Another flat worm is such an abject parasite that it haslost most of the organs usually possessed by worms. This isthe tapeworm (Fig. 147). When the eggs of the tape-worm are taken into the body of an herbivorous animal, theembryos develop there for a way and then stop. Whenflesh containing these embryos is eaten by a carn
RMT1HBHX–Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattl00mous Year: 1905 Fig. 36. — Eggs of pork- measle tapeworm {Tcsnia sol'kwi) : a, with primi- tive vitelline membrane ; 6, without primitive vitel- line membrane, but wdth striated embry ophore. X 450. (After Leuckart.) cysticerci, but the uncertainty in this respect should prevent such meat being consumed. The cysticerci are killed at a temperature of 125° to 130° Fahr. Lesions. The lesions are represented by cysts alone—i.e., by semi-transparent bladders, each of which contains a scolex or head armed
![. Fig. 140.—Portion of the liver of a lamb which died nine days after feeding with eggs of the marginate tapeworm {Tcenia marginata), with numerous "scars," due to young parasites. (After Curtice.) end of the tubes. The embryo can first be seen about four days after infection. The " scars " (Figs. 140 and 141) described in the liver of Stock Photo](https://c8.alamy.com/comp/MCMRBN/fig-140portion-of-the-liver-of-a-lamb-which-died-nine-days-after-feeding-with-eggs-of-the-marginate-tapeworm-tcenia-marginata-with-numerous-quotscarsquot-due-to-young-parasites-after-curtice-end-of-the-tubes-the-embryo-can-first-be-seen-about-four-days-after-infection-the-quot-scars-quot-figs-140-and-141-described-in-the-liver-of-MCMRBN.jpg ". Fig. 140.—Portion of the liver of a lamb which died nine days after feeding with eggs of the marginate tapeworm {Tcenia marginata), with numerous "scars," due to young parasites. (After Curtice.) end of the tubes. The embryo can first be seen about four days after infection. The " scars " (Figs. 140 and 141) described in the liver of Stock Photo")
RMMCMRBN–. Fig. 140.—Portion of the liver of a lamb which died nine days after feeding with eggs of the marginate tapeworm {Tcenia marginata), with numerous "scars," due to young parasites. (After Curtice.) end of the tubes. The embryo can first be seen about four days after infection. The " scars " (Figs. 140 and 141) described in the liver of
RM2AX71JA–The human machine, its care and repair; or, How to develop the body, preserve the health, meet emergencies, nurse the sick, and treat disease; . son, or in large numbers inanyone, they may, in addition to most of the symptoms of tapeworm, cause severe pain in the abdomen, dilated and often unequalpupils, dark and sometimes swollen eyelids, grinding of the teeth,foul breath, troubled dreams, etc. Finding some of the wormsis strong indication of more inside, but a positive diagnosis canbe made only by finding eggs in the feces, by the aid of themicroscope. Treatment.—The best remedy is santonin.
RMRYH02H–Dr. Hess stock book : a scientific treatise on horses, cattle, sheep, hogs and poultry drhessstockbooks00hess Year: 1901 68 DR. HESS SCIENTIFIC TREATISE Pig Measles. Cause and source of infection are now settled beyond a doubt to be from the eggs of the Taenia Solium of man, which is eaten by the pig. It has been as conclusively shown that the tapeworm (Taenia Solium) of man comes from further development of the measle in the pig. This tapeworm found in man is a long, flat worm like a tape-measure, and is made up of joints or segments. Kach segment of the worm bears male and fe- male organ
RMMCMMKH–. Fig. 141.—Cross-section of the liver of a lamb which died nine days after feeding with eggs of the niarginate tapeworm [Tcenia marguiatu). (After Curtis.) after an undetermined length of time, they become disintegrated and more or less calcified. If the hydatid is devoured by a dog or wolf, either when the latter prey upon the secondary host or when the dog obtains the cyst at a slaughter-house, the bladder portion is destroyed, the scolex alone remaining intact in the digestive fluids. The head holds fast to the intestinal wall with its suckers and hooks ; by strobilation (transverse divisi
RM2AJD80F–Practice of medicine : a manual for students and practitioners . i Proglottides of (a) tnnnia saginata (l>) t. solium (Leuckart), and (<•) bothriocephaluslatus (Eichhorst); natural size and enlarged three times to show arrangementof uterus. month or with food or cooking-utensils. This advice appliesnot only to patients, but to physicians as well. Tapeworm—treatment: For a day or two the individualshould fast, or live only upon articles that will afford the Fig. 24.. a be Eggs of (a) t. saginata; (6) t. solium; (c) bothriocephalus latus; X 300 (Eichhorst). worm little nourishment and at t
RMT1HPMY–Diseases of cattle, sheep, goats Diseases of cattle, sheep, goats and swine diseasesofcattl00mous Year: 1905 CYSTICERCOSIS. 291 erroneous idea that the pork-measle tapeworm occurs in dogs as well as in man. Life history. In tracing the life history it is hest to begin wdth the Fig. 137.—Small and large hooks of (A) Tcenia marginata, (B) T. serrata, and (C) T. coenurus, a, Small hooks ; 6, large hooks, x 480. (After Deffke.) egg, produced by the adult tapeworm in the intestine of dogs. These eggs, containing a six-hooked embryo, escape from the dog with the
RMMCKBK9–. Fig. 141.—Cross-section of the liA'er of a lamb which died nine days after feeding with eggs of the niarginate tapeworm [Tcenia marginata). (After Curtis.) after an undetermined length of time, they become disintegrated and more or less calcified. If the hydatid is devoured by a dog or w^olf, either wdien the latter prey upon the secondary host or when the dog obtains the cyst at a slaughter-house, the bladder portion is destroyed, the scolex alone remaining intact in the digestive fluids. The head holds fast to the intestinal wall with its suckers and hooks ; by strobilation (transverse div
RM2AJFGAC–Pediatrics. . 3.—Gravid segment of same, lettering the same as in Fig. 2. AfterDiamare, 1893, pi. 1, Fig. 1. N ovary. Uterus at first represents a reticulum, in the meshes ofwhich are situated the testicles; later it breaks up into egg-sacs orseveral eggs. Eggs with double shell. Adults parasitic in mam-mals. 1 Type species: Dipylidium caninum (Linnaeus). 2Synonyms: Dipylidium Leuckart, 1863; Microtaenia Sedgwick, 1884, INFECTION WITH DOUBLE-PORED TAPEWORM DIPYLIDIUM CANINUM1 (LINNAEUS, 1758). Specific Diagnosis.—Dipylidium: Strobila 15 to 35 cm. long;head small, globular; rostellum club-shape
RMMCKC4X–. Fig. 36. — Eggs of pork- measle tapeworm {Tcsnia sol'kwi) : a, with primi- tive vitelline membrane ; 6, without primitive vitel- line membrane, but wdth striated embry ophore. X 450. (After Leuckart.) cysticerci, but the uncertainty in this respect should prevent such meat being consumed. The cysticerci are killed at a temperature of 125° to 130° Fahr. Lesions. The lesions are represented by cysts alone—i.e., by semi-transparent bladders, each of which contains a scolex or head armed with four suckers and a double crown of hooks. The httle bladders are most commonly found in the muscles, lod
RM2AJCY5B–The diseases of infants and children . llata;Beef Tapeworm (Fig. 267).—The head islarger than in the preceding species,pear-shaped, with 4 sucking mouths, butnot provided with hooklets or a beak.This tapeworm measifres 15 to 24 feet (456 to730 cm.) or more in length, % to % of aninch (1.5 to 2 cm.) in length and about ^^inch (0. 85 cm.) in breadth. Toward themiddle of the worm the breadth is greaterthan at other parts. The uterus contains20 to 25 slender branches on each side, andthe eggs are oval and measure ^^oo to 3^^ooof an inch (0.0032 to 0.004 cm.) in lengthby somewhat more than half thi
RMMABGXM–. Dr. Hess stock book : a scientific treatise on horses, cattle, sheep, hogs and poultry . 68 DR. HESS SCIENTIFIC TREATISE Pig Measles. Cause and source of infection are now settled beyond a doubt to be from the eggs of the Taenia Solium of man, which is eaten by the pig. It has been as conclusively shown that the tapeworm (Taenia Solium) of man comes from further development of the measle in the pig. This tapeworm found in man is a long, flat worm like a tape-measure, and is made up of joints or segments. Kach segment of the worm bears male and fe- male organs of generation, and each scg- Mea
RM2CE24CE–. Biology . Fig. 83.—Taenia solium. A, Entire tapeworm with proglottids; B, scolex withsucking discs and crown of hooks. (From Leuckart.) organic relation to the whole worm. Each segment has a com-plete set of reproductive organs which are quite as complex asthe reproductive organs of annelids or other animals of similargrade (see Fig. 84). When mature, the proglottids are de- 192 PARASITISM tached from the end of the tapeworm and are defecated with thefaeces of the host to the outside. Each proglottid has the powerto produce thousands of eggs which are fertilized when mature,. Fig. 84.—A sing
RMRCC6YY–. Diseases of domesticated birds. Poultry; Poultry; Birds. INTERNAL PARASITES 185 acteristic symptoms. When the bird is very heavily infested, gas bubbles are observed in the droppings, and remain visible for some time. Segments of tapeworms may be found in the feces by careful search, and microscopic examination may be utilized for detecting the presence of tapeworm eggs. Tapeworm infestation in geese has been reported in Germany as causing very marked nervous symptoms. The birds walk very lit- tle and assume an upright position like that of the penguin. Morbid anatomy. In excessive infestati
RMRE1BW2–. Parasites and parasitosis of the domestic animals : the zoo?logy and control of the animal parasites and the pathogenesis and treatment of parasitic diseases . Domestic animals. THE LICE 79 being a larval host of the common tapewomi of the dog, Dipylidium canirmm, as is also the dog flea, Ctenocephalus canis. Infection of the louse by the larva {Cysticercus trichodedes) is readily brought about through ingestion of the eggs of the tapeworm which may have col- lected about the anus or in the Utter of the kennel. This tapeworm is occasionally found to be present in the intestines of human bein
RMRH694N–. Breeding, training, management and diseases of the horse and other domestic animals. Veterinary medicine; Horses; Bookbinding. Fig. 91. CjBt containing eggs of cenurus cerebralis.. Fig. 92 Tenia cenurus, a dog tapeworm.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Heard, J. M. (John M. ). New York : J. M. Heard
RMRE0HB1–. Parasites and parasitosis of the domestic animals : the zoo?logy and control of the animal parasites and the pathogenesis and treatment of parasitic diseases . Domestic animals. 200 PARASITES OF THE DOMESTIC ANIMALS The entire length of the worm is 2-3 meters (6-9 feet), though it may be longer. The eggs (Fig. 110) are oval and provided with a very deUcate shell. The shell surrounding the onchosphere is globular and thick. This tapeworm is much more rare in the United States than is T. saginata. In general, its distribution may be said to correspond with that of the domestic pig, correlated
RMRN4Y8G–. Animal biology. Biology; Zoology; Physiology. BIOLOGY AND HUMAN WELFARE 399 The adult Tapeworm is hermaphroditic and each of the older proglottides contains both male and female reproductive organs, while the terminal 'ripe' ones are almost completely filled with eggs which have already developed into embryos. One by one the ripe proglottides become detached from the worm and pass from the host with the feces. For development to proceed further an embryo must be swallowed by a pig, whereupon it bores through the walls of the animal's intestine, passes to the voluntary muscles and there encys
RMRHK933–. Biology. Biology. 192 PARASITISM tached from the end of the tapeworm and are defecated with the faeces of the host to the outside. Each proglottid has the power to produce thousands of eggs which are fertilized when mature,. FIG. 84.—A single proglottid of Taenia solium enlarged to show the reproductive organs. (From Leuckart.) and stored up in the uterus of the proglottid, ready for develop- ment. When detached, a ripe proglottid then has thousands of embryos, each capable of giving rise to a new tapeworm. But these are deposited with the faeces, and before they can develop into a new Taeni
![. The management and diseases of the dog. Dogs. Internal Parasites, 229 plunge into an ordinary field pond to wash himself, such an act conveys numerous eggs into the water ; and the next herbivorous animal that comes to slake its thirst will be liable to drink in one or more of the parasites' eggs. If thus the hogget or a calf swaiUow the eggs of a gid-tape- worm, " turnside" will be the consequence ; but if the her- bivore swallows the eggs of the hydatid tapeworm, properly so-called, hydatids will be the result. And so on with other creatures which happen to ingest the ova of diff Stock Photo](https://c8.alamy.com/comp/RE0DHF/the-management-and-diseases-of-the-dog-dogs-internal-parasites-229-plunge-into-an-ordinary-field-pond-to-wash-himself-such-an-act-conveys-numerous-eggs-into-the-water-and-the-next-herbivorous-animal-that-comes-to-slake-its-thirst-will-be-liable-to-drink-in-one-or-more-of-the-parasites-eggs-if-thus-the-hogget-or-a-calf-swaiuow-the-eggs-of-a-gid-tape-worm-quot-turnsidequot-will-be-the-consequence-but-if-the-her-bivore-swallows-the-eggs-of-the-hydatid-tapeworm-properly-so-called-hydatids-will-be-the-result-and-so-on-with-other-creatures-which-happen-to-ingest-the-ova-of-diff-RE0DHF.jpg ". The management and diseases of the dog. Dogs. Internal Parasites, 229 plunge into an ordinary field pond to wash himself, such an act conveys numerous eggs into the water ; and the next herbivorous animal that comes to slake its thirst will be liable to drink in one or more of the parasites' eggs. If thus the hogget or a calf swaiUow the eggs of a gid-tape- worm, " turnside" will be the consequence ; but if the her- bivore swallows the eggs of the hydatid tapeworm, properly so-called, hydatids will be the result. And so on with other creatures which happen to ingest the ova of diff Stock Photo")
RMRE0DHF–. The management and diseases of the dog. Dogs. Internal Parasites, 229 plunge into an ordinary field pond to wash himself, such an act conveys numerous eggs into the water ; and the next herbivorous animal that comes to slake its thirst will be liable to drink in one or more of the parasites' eggs. If thus the hogget or a calf swaiUow the eggs of a gid-tape- worm, " turnside" will be the consequence ; but if the her- bivore swallows the eggs of the hydatid tapeworm, properly so-called, hydatids will be the result. And so on with other creatures which happen to ingest the ova of diff
RMRN51NT–. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. BEEF TAPEWORM 239 Dibothriocephalidse, in which the head is flat and possesses two slitlike suckers (Fig. 87C and D). The latter family also differs from the Tseniidae in having eggs with lids like those of the flukes (Fig. 88A), and without developed embryos when passed in the faeces. Family Tseniidae Beef Tapeworm. — The commonest human tapeworm in most parts of the world is the beef tapeworm, Tcenia saginata. The adult of this species .as it occurs in the human small intestine consists of over 1000 p
RMRN5246–. Animal parasites and human disease. Parasites; Medical parasitology; Insects as carriers of disease. DWARF TAPEWORM 243 by the armed head, and become adult. It is said that eggs of this parasite can be found in the faeces within a month after an egg of the preceding generation has been swallowed. Self- infection with these eggs rarely occurs, since the eggs will not develop unless acted upon by the gastric juices. There is still room for doubt as to whether an insect is not commonly involved as an intermediate host as in other species of Hymenolepis; in fact, several investigators have found
RMRN4PHR–. Animal parasites and human disease. Insects as carriers of disease; Medical parasitology. DWARF TAPEWORM 243 -/ by the armed Jiead, and become adult. It is said that eggs of t5is^)arasite can be found in the faeces within a month after an egg of the preceding generation has been swallowed. Self- infection with these eggs rarely occurs, since the eggs will not deyelopimless acted upon by the gastric juices. There is still room for doubt as to whether an insect is not commonly involved as an intermediate host as in other species of Hymenolepis; in fact, several investigators have found cystice
RMRDT33C–. The animals and man; an elementary textbook of zoology and human physiology. Zoology; Physiology. 414 THE ANIMALS AND MAN digested in the intestine of its host. It has no eyes or other special sense-organs, nor any organ of locomotion. Thus its body is very degenerate. The life-history of the tapeworm is interesting, because it lives in two hosts during its life. The eggs of this parasite pass from the intestine with the excreta, and to develop must. : v',7 Fig. 206. Trichina spiralis, encysted in muscle of a pig. (Greatly en- larged.) be taken into the body of some other animal. In the case
RMRD9K5F–. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. DWARF TAPEWORM 243 by the armed head, and become adult. It is said that eggs of this parasite can be found in the faeces within a month after an egg of the preceding generation has been swallowed. Self- infection with these eggs rarely occurs, since the eggs will not develop unless acted upon by the gastric juices. There is still room for doubt as to whether an insect is not commonly involved as an intermediate host as in other species of Hymenolepis; in fact, several investigators have found cysticerco
RMRD9K5W–. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. BEEF TAPEWORM 239 Dibothriocephalidse, in which the head is flat and possesses two slitlike suckers (Fig. 87C and D). The latter family also differs from the Tseniidse in having eggs with lids like those of the flukes (Fig. 88A), and without developed embryos when passed in the faeces. Family Tseniidae Beef Tapeworm. — The commonest human tapeworm in most parts of the world is the beef tapeworm, Taenia saginata. The adult of this species as it occurs in the human small intestine consists of over 1000 pr
RMRN51M0–. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. DWARF TAPEWORM 243 by the armed head, and become adult. It is said that eggs of this parasite can be found in the faeces within a month after an egg of the preceding generation has been swallowed. Self- infection with these eggs rarely occurs, since the eggs will not develop unless acted upon by the gastric juices. There is still room for doubt as to whether an insect is not commonly involved as an intermediate host as in other species of Hymenolepis; in fact, several investigators have found cysticerco
RMRN525T–. Animal parasites and human disease. Insect Vectors; Parasites; Parasitic Diseases; Medical parasitology; Insects as carriers of disease. BEEF TAPEWORM 239 Dibothriocephalidse, in which the head is flat and possesses two slitlike suckers (Fig. 87C and D). The latter family also differs from the Tseniidse in having eggs with lids like those of the flukes (Fig. 88A), and without developed embryos when passed in the faeces. Family Taeniidae Beef Tapeworm. — The commonest human tapeworm in most parts of the world is the beef tapeworm, Tcenia saginata. The adult of this species as it occurs in the
RMRDT58H–. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. Fig. 1007.—Cysticercus cellulosus, mag;nified. Fig. looS.—Hydatid' Tapeworm, mag- nified. The curious etory of the tapeworms teaches us to eschew badly cooked meat, and also to be careful that our animals do not eat the eggs of the future tapeworms with their vegetal food. Dr. Cobbold has pointed out the danger of allowing cattle to graze on sewage grounds, where the eggs of tapeworms must of necessity be distributed. I believe myself, from all I can learn (though up to
RMRDBE5C–. Agricultural zoology. Zoology. 234 ZOOLOGY. of a suitable host, the joint and the egg-shells, or the latter only, as the case may be, are digested in the stomach or intestine, so that the larvse are set free. These (Fig. 137) are spherical, glass-like, of micro- scopic size, as might be expected, and bear three pairs. Fig. 136.—The Common Tapeworm (TfEwia officindlis) : a, head and neck, strongly magnified; J}, joints, natural size; c, eggs, strongly magnified. of booklets, by means of which they quickly perforate the wall of the gut, and make a way through the tissues of the host. They may
![. The management and diseases of the dog. Dog breeds; Dogs. Internal Parasites. 229 plunge into an ordinary field pond to wash himself, such an act conveys numerous eggs into the water ; and the next herbivorous animal that comes to slake its thirst will be liable to drink in one or more of the parasites' eggs. If thus the hogget or a calf swallow the eggs of a gid-tape- worm, " turnside" will be the consequence ; but if the her- bivore swallows the eggs of the hydatid tapeworm, properly so-called, hydatids will be the result. And so on vvith otter creatures which happen to ingest th Stock Photo](https://c8.alamy.com/comp/RE0H0J/the-management-and-diseases-of-the-dog-dog-breeds-dogs-internal-parasites-229-plunge-into-an-ordinary-field-pond-to-wash-himself-such-an-act-conveys-numerous-eggs-into-the-water-and-the-next-herbivorous-animal-that-comes-to-slake-its-thirst-will-be-liable-to-drink-in-one-or-more-of-the-parasites-eggs-if-thus-the-hogget-or-a-calf-swallow-the-eggs-of-a-gid-tape-worm-quot-turnsidequot-will-be-the-consequence-but-if-the-her-bivore-swallows-the-eggs-of-the-hydatid-tapeworm-properly-so-called-hydatids-will-be-the-result-and-so-on-vvith-otter-creatures-which-happen-to-ingest-th-RE0H0J.jpg ". The management and diseases of the dog. Dog breeds; Dogs. Internal Parasites. 229 plunge into an ordinary field pond to wash himself, such an act conveys numerous eggs into the water ; and the next herbivorous animal that comes to slake its thirst will be liable to drink in one or more of the parasites' eggs. If thus the hogget or a calf swallow the eggs of a gid-tape- worm, " turnside" will be the consequence ; but if the her- bivore swallows the eggs of the hydatid tapeworm, properly so-called, hydatids will be the result. And so on vvith otter creatures which happen to ingest th Stock Photo")
RMRE0H0J–. The management and diseases of the dog. Dog breeds; Dogs. Internal Parasites. 229 plunge into an ordinary field pond to wash himself, such an act conveys numerous eggs into the water ; and the next herbivorous animal that comes to slake its thirst will be liable to drink in one or more of the parasites' eggs. If thus the hogget or a calf swallow the eggs of a gid-tape- worm, " turnside" will be the consequence ; but if the her- bivore swallows the eggs of the hydatid tapeworm, properly so-called, hydatids will be the result. And so on vvith otter creatures which happen to ingest th
RMRG58BK–. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. WORM PARASITES IN DEER 207 animal or final host, but as an immature stage (bladder worm) in another species of animal or intermediate host, usually an herbivorous one. The eggs from the adult worms which pass out with the droppings of the animal infected with the adult tapeworm are eaten by the intermediate host. The final host becomes infected by eating the tissue of an infected intermediate host.. Fig. fi4. Bladder worms on membrane
RMRN525K–. Animal parasites and human disease. Parasites; Medical parasitology; Insects as carriers of disease. BEEF TAPEWORM 239 Dibothriocephalidae, in which the head is flat and possesses two slitlike suckers (Fig. 87C and D). The latter family also differs from the Tseniidae in having eggs with lids like those of the flukes (Fig. 88A), and without developed embryos when passed in the faeces. Family Taeniidae Beef Tapeworm. — The commonest human tapeworm in most parts of the world is the beef tapeworm, Tcenia saginata. The adult of this species as it occurs in the human small intestine consists of o
RMRN5WWW–. Animal ecology. Animal ecology. 76 ANIMAL ECOLOGY fox dies, and this is also brought about by the food-cycle. For the tapeworm produces vast numbers of eggs which pass out with the excretory products of the fox ; some of these eggs contaminate the vegetation which the rabbit is eating, or in some other way get in with its food, and are then able ultimately to grow up into more bladderworms in the body of the rabbit. The diagram in Fig. 6 shows the way in which the food-cycle PLANTS --EggD-- ^RABBIT Larvae- +»POX Adult Fig. 6. acts as a means of conveyance for the parasites, throughout its li
![. Veterinary studies for agricultural students. Veterinary medicine. 144 VETERINARY STUDIES is adult in the dog. A common adult tapeworm of the human, has its larval or cyst stage in the flesh of the hog, causing what is called "measly pork." The adult tapeworm constantly forms new segments back of the small head. These segments ma- ture while new segments are being added in front of them. The terminal segments, filled with eggs, separate and pass off with the manure, while the head remains attached to the mucous membrane and continues to produce new segments. The injury to the host Stock Photo](https://c8.alamy.com/comp/RE554C/veterinary-studies-for-agricultural-students-veterinary-medicine-144-veterinary-studies-is-adult-in-the-dog-a-common-adult-tapeworm-of-the-human-has-its-larval-or-cyst-stage-in-the-flesh-of-the-hog-causing-what-is-called-quotmeasly-porkquot-the-adult-tapeworm-constantly-forms-new-segments-back-of-the-small-head-these-segments-ma-ture-while-new-segments-are-being-added-in-front-of-them-the-terminal-segments-filled-with-eggs-separate-and-pass-off-with-the-manure-while-the-head-remains-attached-to-the-mucous-membrane-and-continues-to-produce-new-segments-the-injury-to-the-host-RE554C.jpg ". Veterinary studies for agricultural students. Veterinary medicine. 144 VETERINARY STUDIES is adult in the dog. A common adult tapeworm of the human, has its larval or cyst stage in the flesh of the hog, causing what is called "measly pork." The adult tapeworm constantly forms new segments back of the small head. These segments ma- ture while new segments are being added in front of them. The terminal segments, filled with eggs, separate and pass off with the manure, while the head remains attached to the mucous membrane and continues to produce new segments. The injury to the host Stock Photo")
RMRE554C–. Veterinary studies for agricultural students. Veterinary medicine. 144 VETERINARY STUDIES is adult in the dog. A common adult tapeworm of the human, has its larval or cyst stage in the flesh of the hog, causing what is called "measly pork." The adult tapeworm constantly forms new segments back of the small head. These segments ma- ture while new segments are being added in front of them. The terminal segments, filled with eggs, separate and pass off with the manure, while the head remains attached to the mucous membrane and continues to produce new segments. The injury to the host
RMRHJWEP–. Biology; the story of living things. THE ART OF PARASITISM 2:{i cycle. The adult tapeworm matures sexually in the spring of the year, the mature eggs being shed into shallow water where the fishes come inshore to spawn. The eggs of the parasites are soon eaten by copepods and the developmental period necessary for the larval parasite to reach its second infective stage is closely correlated with the time interval between the laying of the bass eggs and the absorp- tion of the yolk sac of the bass fry. At the time the young fishes begin feeding upon plankton, the copepods in the vicinity of b
RMRDT58P–. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. 452 MY GARDEN. Another Tapeworm, the Armed Tapeworm {Tcenia solium, fig. 1005), produces eggs which when devoured by swine give rise to measly pork (fig. 1006). When this is eaten by man a perfect tapeworm arises, which again passes eggs, to be again eaten by swine. If the eggs are taken into the stomach of man, they give rise to Cysticerci (fig. ICXD/), or measles, and if they travel to the brain they may cause fatal results. The tapeworm of the dog lives in man as the
RMRN4PKY–. Animal parasites and human disease. Insects as carriers of disease; Medical parasitology. BEEF TAPEWORM 239 Dibothriocephalidse, in which the head is flat and possesses two slithke suckers (Fig. 87C and D). The latter family also differs from the Tseniidse in having eggs with lids like those of the flukes (Fig. 88A), and without developed embryos when passed in the fseces. The Family Tseniidse Beef Tapeworm. — The commonest human tapeworm in most parts of the world is the beef tapeworm, Taenia saginata adult of this species as it occurs in the human small intestine consists of over 1000 prog
RMRN524P–. Animal parasites and human disease. Insect Vectors; Parasites; Parasitic Diseases; Medical parasitology; Insects as carriers of disease. DWARF TAPEWORM 243 by the armed head, and become adult. It is said that eggs of this parasite can be found in the faeces within a month after an egg of the preceding generation has been swallowed. Self- infection with these eggs rarely occurs, since the eggs will not develop unless acted upon by the gastric juices. There is still room for doubt as to whether an insect is not commonly involved as an intermediate host as in other species of Hymenolepis; in fa
RMRDT58K–. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. Fig. 1006.—Pork Measles, nat. size. a «, the cvsts : b i, tapeworm larvse.. Fig. 1007.—Cysticercus cellulosus, mag;nified. Fig. looS.—Hydatid' Tapeworm, mag- nified. The curious etory of the tapeworms teaches us to eschew badly cooked meat, and also to be careful that our animals do not eat the eggs of the future tapeworms with their vegetal food. Dr. Cobbold has pointed out the danger of allowing cattle to graze on sewage grounds, where the eggs of tapeworms must of ne
RMRN51K9–. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. 244 THE TAPEWORMS rats and mice from the household and in keeping food out of their reach, and in guarding against the accidental ingestion of such possible intermediate hosts as fleas. A closely allied species, H. diminuta (Fig. 91), occurs rarely in man. It closely resembles the dwarf tapeworm but is of larger size (four to 24 inches in length) and has no hooks on the scolex (Fig. 87H). The eggs develop in the larvae or adults of the mealworm, Asopia farinalis, and in adult beetles, forming cysticerco
RMRN4Y7R–. Animal biology. Biology; Zoology; Physiology. Rosteilum i Hooks — Sucker -Genital pore -Uterus. Fig. 252. — Tapeworm, Taenia solium. A, Anterior and posterior parts of a specimen about 8 feet long comprising some 900 proglottides. Uteri filled with eggs are shown in the last two proglottides. B, Scolex more highly mag- nified. (From Hegner.) worm, or cysticercus, stage. To complete the life history, in- fected meat, insufficiently cooked, must be eaten by Man. If this transfer is successfully accomplished, upon attaining the human digestive tract the parasite gradually assumes the adult form
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