Define peristalsis....

Define peristalsis.

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**Step-by-Step Text Solution:** 1. **Definition of Peristalsis**: Peristalsis is defined as a type of movement that occurs in the digestive tract. 2. **Nature of Movement**: This movement is characterized as involuntary, meaning it occurs automatically without conscious control. 3. **Location of Peristalsis**: Peristalsis primarily occurs in the esophagus and throughout the alimentary canal (the entire digestive tract). ...

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Which layer of the gut is responsible for peristalsis?

Smooth muscles

Mucosa

Submucosa

Serosa

A : Postganglionic nerve fibre of parasympathetic nervous system have acetylcholine while sympathetic nervous system have adrenaline as the neurotransmitter. R : Sympathetic nervous system inhibit the intestinal peristalsis while parasympathetic stimulate peristalsis.

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).

If Assertion is true statement but Reason is false, then mark (3).

If both Assertion and Reason are false statements, then mark (4).

Assertion. SNS slows down peristalsis. Reason. Parasympathetic nervous system does the same.

If both A and R are true and R is the correct explanation of A.

If both A and R are true and R is not the correct explanation of A.

If A is true but R is false.

If both A and R are false.