MUSCLE PHYSIOLOGY

Detailed explanation-1: -Acetylcholine is the neurotransmitter used at the neuromuscular junction-in other words, it is the chemical that motor neurons of the nervous system release in order to activate muscles.

Detailed explanation-2: -Acetylcholine is a type of chemical messenger or neurotransmitter that plays a vital role in the central and peripheral nervous systems. It is important for muscle control and autonomic body functions, also impacting learning, memory, and attention.

Detailed explanation-3: -In skeletal muscle, the parasympathetic nervous system releases acetylcholine neurotransmitter that leads to depolarization of skeletal muscle by increasing the concentration of sodium ion channels. The parasympathetic nervous system releases Acetylcholine neurotransmitter that acts on the cardiac muscle.