NEET BIOLOGY

Detailed explanation-1: -Final answer: An example of an autonomous nervous system is the peristalsis of the intestine.

Detailed explanation-2: -The autonomic nervous system controls all “automatic” body functions, such as breathing, heart rate, blood pressure, sweating, mouth-watering (salivating), and the movement of food through the intestines (peristalsis).

Detailed explanation-3: -Esophageal peristalsis and sphincter function are controlled by the autonomic nervous system, with contributions from parasympathetic, sympathetic, and enteric divisions.

Detailed explanation-4: -The parasympathetic nervous system (PNS) stimulates peristalsis via the myenteric plexus. The afferent (sensory) nerves of the myenteric plexus deliver information to interneurons within the plexus. Interneurons communicate with efferent nerves, stimulating an action potential (spike-wave) within smooth muscle cells.

Detailed explanation-5: -Examples of parasympathetic responses Salivation: As part of its rest-and-digest function, the PSNS stimulates production of saliva, which contains enzymes to help your food digest. Lacrimation: Lacrimation is a fancy word for making tears. Tears keep your eyes lubricated, preserving their delicate tissues.