Question

Nervous control of gastric secretion is provided by ________.

Answer 1

Options for the question have not been provided. They are as follows:

A) somatic neurons in the spinal cord

B) the reticulospinal and vestibulospinal tracts

C) the vagus nerve and enteric plexus

D) the rubrospinal tracts

Answer:

C) the vagus nerve and enteric plexus

Explanation:

Enteric plexus or enteric nervous system is a part of autonomic nervous system and controls the gastrointenstinal (GI) tract. Vagus nerve is tenth cranial nerve and it innervates the enteric plexus. Both work together to control various functions of GI tract like peristalsis and gastric secretion. They release Gastrin-releasing peptide due to which the G cells of stomach are stimulated secrete gastrin. Gastrin in turn stimulates parietal cells of stomach to secrete gastric juice.