Question

what is peristaltic movement ? write the importance of mucus in the walls of food pipe​

Answer 1

Explanation:

Peristaltic movements in oesophagus: Importance of mucus on the walls of food pipe: The walls of the food pipe secrete a slippery substance called mucus. The mucus lining lubricates and protects the oesophageal walls from any damage and helps the bolus to easily slide down the food pipe.

In the human digestive system, mucus is used as a lubricant for materials that must pass over membranes, e.g., food passing down the esophagus. Mucus is extremely important in the gastrointestinal tract.

Answer 2

Answer:

Hey Buddy!!!

Peristalsis is a radially symmetrical contraction and relaxation of muscles that propagates in a wave down a tube, in an anterograde direction. When you swallow food, the walls of the oesophagus squeeze together (contract). ... It is moist to help food pass smoothly into the stomach. The submucosa contains glands that produce mucus (secretions). This keeps the oesophagus moist.

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