Question

Describe the location, structure and function of the scroll valve​

Answer 1

Sharks have compensated for this problem by having a spiral valve, or a scroll valve, inside the intestine to increase the absorbent surface of the intestine. By keeping digestible material in the ileum for an extended period maximum nutrient absorption is ensured.

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Answer 2

Answer:

A spiral valve or scroll valve is the corkscrew-shaped lower portion of the intestine of some sharks, acipenseriformes , rays, skates, bichirs, lepisosteiformes , and lungfishes. A modification of the ileum, the spiral valve is internally twisted or coiled to increase the surface area of the intestine which increases nutrient absorption.

Explanation:

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