Trichina - meaning and definition. What is Trichina
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What (who) is Trichina - definition

GENUS OF WORMS
Trichina; Trichinae
  • A [[microscope]] for ''Trichinella'' detection (from 1847).

trichina         
['tr?k?n?, tr?'k??n?]
¦ noun (plural trichinae -ni:) a parasitic nematode worm of humans and other mammals, the adults of which live in the small intestine. [Genus Trichinella.]
Origin
C19: from mod. L. (former genus name), from Gk trikhinos 'of hair'.
Trichina         
·noun A small, slender nematoid worm (Trichina spiralis) which, in the larval state, is parasitic, often in immense numbers, in the voluntary muscles of man, the hog, and many other animals. When insufficiently cooked meat containing the larvae is swallowed by man, they are liberated and rapidly become adult, pair, and the ovoviviparous females produce in a short time large numbers of young which find their way into the muscles, either directly, or indirectly by means of the blood. Their presence in the muscles and the intestines in large numbers produces trichinosis.
Trichinae         
·pl of Trichina.

Wikipedia

Trichinella

Trichinella is the genus of parasitic roundworms of the phylum Nematoda that cause trichinosis (also known as trichinellosis). Members of this genus are often called trichinella or trichina worms. A characteristic of Nematoda is the one-way digestive tract, with a pseudocoelom (body cavity made up of only an ectoderm and endoderm).

The genus was first recognised in a larval form in 1835. The L1 larvae live in a modified skeletal muscle cell. The adult worms occupy a membrane-bound portion of columnar epithelium, living as intramulticellular parasites of animals, including humans. Infections with this genus have been reported from more than 150 different naturally or experimentally infected hosts. It has been shown to have a worldwide distribution in domestic and/or sylvatic animals.

Trichinella is the smallest human nematode parasite, yet it is also the largest of all intracellular parasites.

Oral ingestion of cyst- or larvae-contaminated tissue is the usual route of infection, but congenital and mammary transmission can occur in rats.