Which of these have no smooth muscle in their walls?
A) venules
B) small veins
C) medium-sized veins
D) large veins
E) All of these contain at least some smooth muscle in their walls.

Name: Which of these have no smooth muscle in their walls? A) venules B) small veins C) medium-sized veins D) large veins E) All of these contain at least some smooth muscle in their walls.
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Question

Quizplus · Accepted Answer

Venules are the smallest veins and do not have smooth muscle in their walls.

Which of These Have No Smooth Muscle in Their Walls