MICROANATOMY

DIGESTIVE SYSTEM

GI TRACT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What do nerve plexuses do?
A
nothing
B
Digests your food
C
eats your dead organs
D
helps regulate mobility and secretory activity of GI Tract Organs
Explanation: 

Detailed explanation-1: -Submucosal ganglia and connecting fiber bundles form plexuses in the small and large intestines, but not the stomach and esophagus. This arrangement of nerves receives data from mechanoreceptors and chemoreceptors and manipulates secretion as well as blood flow. [3]

Detailed explanation-2: -The inner plexus is the main control for GI secretion and local blood flow. The myenteric plexus extends throughout the entire length of the gut as a linear chain of interconnected neurons. Lying within intestinal smooth muscle, the myenteric plexus focuses on muscle control.

Detailed explanation-3: -The myenteric plexus lies in between the outer longitudinal and inner circular smooth muscle layers of the intestines. By stimulating these muscles, it controls motility along the gastrointestinal tract.

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