MUSCLE PHYSIOLOGY

Detailed explanation-1: -However, through the nicotinic cholinergic receptors, acetylcholine allows for skeletal muscle contraction; in the adrenal glands, the release of adrenaline and norepinephrine; and in the peripheral sympathetic ganglia, activation of the sympathetic system with the release of norepinephrine.

Detailed explanation-2: -What is acetylcholine (ACh)? Acetylcholine (ACh) is a neurotransmitter, a chemical that carries messages from your brain to your body through nerve cells. It’s an excitatory neurotransmitter. This means it “excites” the nerve cell and causes it to “fire off the message.”