The motor (somatic nervous) system can alter the activities of its targets, the skeletal muscle fibers, because ________.
A) it is electrically coupled by gap junctions to the muscles
B) its signals bind to receptor proteins on the muscles
C) its signals reach the muscles via the blood
D) it is connected to the internal neural network of the muscles

Question

Quizplus · Accepted Answer

The somatic nervous system controls skeletal muscle fibers by releasing signals (neurotransmitters) at the neuromuscular junctions, where these signals bind to receptor proteins on the muscles and initiate the contraction process.

The Motor (Somatic Nervous) System Can Alter the Activities of Its