Smooth muscle
A) contracts when stretched.
B) does not contain actin or myosin.
C) produces rapid contractions.
D) is under voluntary control.

Question

Quizplus · Accepted Answer

Smooth muscle contracts when stretched, which is a unique characteristic compared to other muscle types. It contains actin and myosin, which are crucial for its contraction mechanism, produces slow, sustained contractions rather than rapid ones, and is not under voluntary control, operating instead via the autonomic nervous system.

Smooth Muscle