Skeletal and smooth muscles move when nerve impulses sent from the stimulate the muscle fibers telling them to either contract or relax?

Skeletal and smooth muscles contract or relax in response to nerve impulses that stimulate their muscle fibers. In skeletal muscles, motor neurons release neurotransmitters at the neuromuscular junction, triggering contractions. Smooth muscles, which are involuntary, respond to autonomic nervous system signals and various hormones. This process allows for coordinated movements and functions throughout the body.