Pronunciation: te're val'ah
Definition: experimental isolation of a segment of intestine in an animal; a loop of intestine is isolated, its vascular and nervous connections are preserved, and continuity of the intestinal tract is restored by an end-to-end anastomosis; each end of the isolated segment is connected to an independent opening in the abdominal wall.
Synonym(s): Vella fistula
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Examples: glitazone, GI cocktail, etc.