MEDICAL PHYSIOLOGY

Detailed explanation-1: -Acetylcholine (ACh) is an important neurotransmitter that plays a role in brain functions, such as memory, and body functions, such as muscle contractions to move your muscles. Low levels of acetylcholine are associated with memory issues and muscle disorders.

Detailed explanation-2: -Muscle contraction is controlled by receptors in the muscle cell membranes that respond to the neurotransmitter acetylcholine when it is released from motor neurons. Acetylcholine receptors are also found on neurons, where they perform a variety of important functions, including modulating cognition and addiction.

Detailed explanation-3: -Acetylcholine is the chief neurotransmitter of the parasympathetic nervous system, the part of the autonomic nervous system (a branch of the peripheral nervous system) that contracts smooth muscles, dilates blood vessels, increases bodily secretions, and slows heart rate.

Detailed explanation-4: -Contracts Smooth Muscles Acetylcholine released from nerve endings will bind to acetylcholine receptors on your smooth muscle’s surface, causing sodium channels to open. This allows action potential to travel along cells, which triggers a process that opens the L-type calcium channel.