spiral valve

spiral valve defined in 1951 year

spiral valve - spiral valve;
spiral valve - Spiral fold of mucous membrane projecting into intestine of certain fish, e.g. elasmobranchs, ganoids, and dipnoi, probably increasing absorptive surface.

near spiral valve in Knolik

spiral thickeninghome
letter "S"
start from "SP"

definition of word "spiral valve" was readed 1039 times

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