Question

A healthy elastic artery ________. Select one: a. reduces blood flow b. is compliant c. is a resistance artery d. has a thin wall and irregular lumen

Answer 1

Answer:

b. is compliant.

Explanation:

Arterial compliance is basically defined as an index of elasticity of large arteries.

Elastic artery contains a very large amount of elastin in all of its three layers hence it is extremely compliant i-e their abundant elastic fibers allow them to expand, as blood pumped from the ventricles passes through them, and then to recoil after the surge has passed.

Hence b. is the right answer.

While all the other options are wrong . As the elastic artery increases the blood flow so option A is wrong.

Elastic artery is not a rigid artery, it is elastic and compliant hence option C is also wrong.

Elastic artery has a thick wall to withstand high pressure hence option D is also wrong.