Q. Muscle contraction is initiated by a signal sent by the central nervous system by the release of ____.
A) cyclic adenine monophosphate
B) acetyl choline
C) acetyl coenzyme A
D) cyclic guanine monophosphate
Explanation
[Solution from source] A neural signal at the neuromuscular junction releases acetylcholine, generating an action potential in the sarcolemma. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.