Which type(s) of muscle contraction can be regulated by acetylcholine?
A) cardiac and skeletal
B) cardiac, skeletal and smooth
C) skeletal and smooth
D) skeletal only

Question

Quizplus · Accepted Answer

Acetylcholine is a neurotransmitter that plays a major role in skeletal and smooth muscle contractions, as well as in cardiac muscle contractions. Therefore, option B is the best choice that includes all types of muscles that can be regulated by acetylcholine.

Which Type(s) of Muscle Contraction Can Be Regulated by Acetylcholine