Taenia


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Taenia

 [te´ne-ah]
a genus of tapeworm. See figure at tapeworm.
Taenia sagina´ta a species 4 to 8 meters long, found in the adult form in the human intestine and in the larval state in muscles and other tissues of cattle and other ruminants; human infection usually results from eating inadequately cooked beef.
Taenia so´lium a species 2 to 4 meters long, found in the adult intestine of humans; the larval form most often is found in muscle and other tissues of the pig. Human infection results from eating inadequately cooked pork.

taenia

 [te´ne-ah]
1. a flat band or strip of soft tissue; used in anatomic nomenclature to designate various structures.
2. a tapeworm of the genus Taenia. Defs. 1 and 2 called also tenia.
taenia co´li any of the three thickened bands (tae´nia li´bera, tae´nia mesoco´lica, and tae´nia omenta´lis) formed by longitudinal fibers in the tunica muscularis of the large intestine, extending from the root of the vermiform appendix to the rectum.

Taenia

(tē'nē-ă),
A genus of cestodes that formerly included most tapeworms but is now restricted to those species infecting carnivores with cysticerci found in tissues of various herbivores, rodents, and other animals of prey.
See also: tapeworm.
[see taenia]

tae·ni·a

(tē'nē-ă),
1. A coiled bandlike anatomic structure.
2. Common name for a tapeworm, especially of the genus Taenia. Synonym(s): tenia (2)
[L., fr. G. tainia, band, tape, a tapeworm]

taenia

also

tenia

(tē′nē-ə)
n. pl. tae·niae (-nē-ē′) or tae·nias
1. Anatomy A ribbonlike band of tissue or muscle.
2. Any of various tapeworms of the genus Taenia, some of which infect humans.

Taenia

Latin, taenia, ribbon, tape Parasitology A genus of large segmented, with each segment or proglottid capable of producing eggs tapeworms–cestodes-that parasitize mammalian GI tracts Epidemiology Infestation is linked to consumption of raw pork–T solium or beef–T saginata; eggs are dispersed by individual or groups of proglottids, which detach and pass out with the stool. See Taenia solium.

Tae·ni·a

(tē'nē-ă)
A genus of cestodes that formerly included most of the tapeworms, but is now restricted to those species infecting carnivores with cysticerci found in tissues of various herbivores, rodents, and other animals of prey.
See also: tapeworm
Compare: tenia (1)

tae·ni·a

(tē'nē-ă)
1. A coiled, bandlike anatomic structure.
See also: tenia (1)
2. Common name for a tapeworm, especially of the genus Taenia.
Synonym(s): tenia (2) .
[L., fr. G. tainia, band, tape, a tapeworm]

Taenia

(te'ne-a) [L. taenia fr Gr. tainia, tape, ribbon]
A genus of tapeworms, parasitic flatworms belonging to the class Cestoda, phylum Platyhelminthes. They are elongated ribbon-like worms consisting of a scolex, usually with suckers and perhaps hooks, and a chain of segments (proglottids). Adults live as intestinal parasites of vertebrates; larvae parasitize both vertebrates and invertebrates, which are intermediate hosts. See: taeniasis; tapeworm

Taenia asiatica

A species found in China, Southeast Asia, and Korea, structurally similar to T. saginata.

Taenia lata

See: Diphyllobothrium latum
Enlarge picture
TAENIA SAGINATA: beef tapeworm (orig. mag. ×100)

Taenia saginata

A species whose larvae live in cattle. The adult worm lives in the small intestine of humans, who acquire it by eating insufficiently cooked beef infested with the encysted larval form (cysticercus or bladderworm). Adult worms may reach a length of 15 to 20 ft (4.6 to 6.1 m) or longer.
Synonym: beef tapeworm; unarmed tapeworm See: illustration
Enlarge picture
TAENIA SOLIUM: (Orig. mag. ×5)

Taenia solium

A species whose larvae live in hogs; its scolex possesses a row of hooks about the rostellum. The adult worm lives in the small intestine of humans, who acquire it by eating insufficiently cooked pork. Adult worms may take up residence in the intestine, depriving the host of food. Larval forms of T. solium may encyst in the brain, resulting in seizures. In some underdeveloped nations the onset of seizures in adulthood is presumed to be the result of neurocysticercosis until proved otherwise. The infection is treated with niclosamide or praziquantel.
Synonym: armed tapeworm; pork tapeworm See: illustration

taenia

(te'ne-a) [L., tape]
1. A flat band or strip of soft tissue.
2. A tapeworm of the genus Taenia. Synonym: tenia

taenia coli

The three bands of smooth muscle into which the longitudinal muscle layer of the colon is gathered. They are taenia mesocolica (mesenteric insertion), taenia libera (opposite mesocolic band), and taenia omentalis (at place of attachment of omentum to transverse colon).

taenia fimbriae

The folded or recurved lateral edge of the fimbria to which the epithelium covering the choroid plexus of the inferior horn of the lateral ventricle is attached.

taenia pontis

One or two small transverse bands of fiber at the rostral border of the pons.

taenia semicircularis

The stria terminalis.

taenia thalami

A structure separating the superior surface from the lateral surface of the thalamus, its lateral portion containing the stria medullaris.

taenia ventriculi tertii

The taenia of the third ventricle.
References in periodicals archive ?
Four cases of Taenia saginata infection with an analysis of COX1 gene.
Infection with Taenia pisiformis eggs: Taenia pisiformis proglottids were obtained from the intestine of naturally infected dogs, which were humanely euthanized at the Canine Control Center in Mexico.
Epidemiologia da teniase/cisticercose por Taenia solium e Taenia saginata.
Seven pathogenic organisms (hookworms, Giardia lamblia, Trichuris trichiura, Strongyloides stercoralis, Ascaris lumbricoides, Taenia sp., Hymenolepis nana), three commensal species (Endolimax nana, Iodamoeba butschlii, Entamoeba coli) and one undefined (Entamoeba histolytica/Entamoeba dispar complex) were detected.
Fleury et al., "Taenia solium disease in humans and pigs: an ancient parasitosis disease rooted in developing countries and emerging as a major health problem of global dimensions," Microbes and Infection, vol.
taenia, Cobitis tanaitica Bacescu & Mayer, 1969, Cobitis stephanidisi Economidis, 1992, etc.) was corraborated by investigation of Bohlen et al.
-- -- -- Giardia lamblia 57 (6,31%) 25 (2,76%) 28 (3,10%) Ancilostomideos -- -- -- Ancylostoma braziliense -- -- -- Ascaris lumbricoides 3 (0,33%) 1 (0,11%) 5 (0,55%) Enterobius vermiculares 1 (0,11%) 1 (0,11%) -- Trichuris trichiura -- 1 (0,11%) -- Trichocephalus trichiurus 1 (0,11%) 2 (0,22%) 3 (0,33%) Fasciola hepatica -- -- -- Hymenolepis nana 1 (0,11%) 3 (0,33%) 1 (0,11%) Taenia sp.
Intestinal parasites isolated from the fecal samples include eggs of Taenia sp., A.
Other parasite that uses rodents as intermediate hosts is the cosmopolitan cestode Taenia taeniaeformis Batsch, 1786 (Cestoda: Cyclophyllidea).
Studies on the cross-reactivity of each recombinant antigen were conducted with goat sera positive for gastrointestinal (GI) strongyle nematodes and Taenia hydatigenia.
Cysticercus tenuicollis is a bubble-like metacestode of Taenia hydatigena that invades the abdominal cavity and liver of pigs, dogs, and other carnivores [1-3].
Magnetic resonance imaging (MRI) of brain (in cases with normal or doubtful CT scan findings), cerebrospinal fluid (CSF) examination, stool microscopic examination for evidence of Taenia solium, Taenia solium antibody in serum and CSF (ELISA kit; UB-Magiwell Cysticercosis Kit[TM]), and EEG were done.