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单词 whipworm
释义

whipworm


whip·worm

W5126100 (wĭp′wûrm′, hwĭp′-)n. Any of several slender, whip-shaped, parasitic nematode worms of the genus Trichuris that infest the intestines of mammals, especially T. trichiura, which causes trichuriasis in humans.

whipworm

(ˈwɪpˌwɜːm) n (Animals) any of several parasitic nematode worms of the genus Trichuris, esp T. trichiura, having a whiplike body and living in the intestines of mammals

whip•worm

(ˈʰwɪpˌwɜrm, ˈwɪp-)

n. any of several parasitic nematodes of the genus Trichuris, having a long, slender, whiplike anterior end. [1870–75]
Translations

Whipworm


Whipworm

 

(Trichocephalus trichiurus), a parasitic round-worm, with a gray or reddish body. It is threadlike toward the front, and toward the back it is thickened and, in the male, curled up in a spiral. The length of the male is from 30 to 40 mm and that of the female is from 35 to 50 mm. The whipworm lives parasitically in the human intestines (in the blind gut and, less frequently, in the large intestine, the vermiform appendix, or the rectum). It attaches itself to the wall of the intestine by penetrating the mucous membrane with its thin front end and causes the disease trichuriasis. The whipworm develops without an intermediary host. Outside of the human body the larva develops over a period ranging from 11 to 120 days (depending on the temperature) inside an egg that is lemon-shaped and has plugs at both poles. When the egg lands in the intestines, the larva comes out of the egg and attaches itself to the wall of the intestine.

REFERENCE

Pod’iapol’skaia, V. P., and V. F. Kapustin. Glistnye bolezni cheloveka, 3rd ed. Moscow, 1958.

S. S. SHUL’MAN

whipworm


whipworm

 [hwip´werm] any nematode of the genus Trichuris.

Trich·u·ris trich·i·u·'ra

the whipworm of humans, a species that causes trichuriasis; the body is filiform and slender in the anterior three fifths, and more robust posteriorly; females are 4 or 5 cm long, males are shorter (with coiled caudal extremity and a single eversible spicule); eggs are barrel-shaped, 50-56 mcm by 20-22 mcm, with double shell and translucent knobs at each of the two poles; humans are the only susceptible hosts and usually acquire infection by direct finger-to-mouth contact or by ingestion of soil, water, or food that contains larvated eggs (development in the soil takes 3-6 weeks under proper conditions of warmth and moisture, hence distribution is chiefly tropical); larvae escape from eggs in the ileum, mature in approximately a month, and then pass directly into the cecum without undergoing a parenteral migration as occurs with Ascaris lumbricoides; adults may persist for 2-7 years.

whipworm

(wĭp′wûrm′, hwĭp′-)n. Any of several slender, whip-shaped, parasitic nematode worms of the genus Trichuris that infest the intestines of mammals, especially T. trichiura, which causes trichuriasis in humans.

Whipworm

A nematode worm of the family Trichuridae with a body that is thick at one end and very long and slender at the other end.Mentioned in: Antihelminthic Drugs, Roundworm Infections
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更新时间:2024/12/22 20:18:57