ANATOMY

Detailed explanation-1: -The presynaptic neurons of the parasympathetic system are located within the medulla oblongata and sacral spinal cord.

Detailed explanation-2: -What is the parasympathetic nervous system? Your parasympathetic nervous system is part of your autonomic nervous system. It could be called your “automatic” nervous system, as it’s responsible for many functions that you don’t have to think about to control.

Detailed explanation-3: -The vagus nerve represents the main component of the parasympathetic nervous system, which oversees a vast array of crucial bodily functions, including control of mood, immune response, digestion, and heart rate.

Detailed explanation-4: -The parasympathetic system is responsible for stimulation of “rest-and-digest” or “feed and breed” activities that occur when the body is at rest, especially after eating, including sexual arousal, salivation, lacrimation (tears), urination, digestion, and defecation.

Detailed explanation-5: -The vagus nerve, also known as the tenth cranial nerve (CN X) is an important nerve of the autonomic nervous system’s parasympathetic division.