MUSCLE PHYSIOLOGY

Detailed explanation-1: -Acetylcholine: The terminal of an axon has a sac-like structure. These sac-like structures are filled with the neurotransmitter called acetylcholine. Acetylcholine helps in transmission of chemical signals from one neuron to another converting the electrical signals into electrochemical signals.

Detailed explanation-2: -Acetylcholine is stored at the end of nerve cells until it’s triggered to be released. Once released from the end of the nerve cell, it moves into a space called the synaptic cleft.

Detailed explanation-3: -Acetylcholine, a substance synthesized by neurons, is the primary neurotransmitter of the parasympathetic nervous system, which controls smooth muscle contraction and blood vessel dilation and slows heart rate.