THORAX ABDOMEN AND PELVIS

MEDICAL

DUODENUM JEJUNUM AND ILEUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ nervous system stimulates the small intestine to perform segmentation and peristalsis.
A
sympathetic
B
parasympathetic
C
somatic
D
autonomic
Explanation: 

Detailed explanation-1: -The Parasympathetic Nervous System controls our “rest and digest” mode. In this state, energy is conserved, heart rate slows down, blood flows to the digestive tract and intestinal activity increases.

Detailed explanation-2: -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-3: -The enteric nervous system has a complex role in the small intestine, interacting with all cell types to modulate motility, secretion, pain perception, and inflammation (Fig.

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