Question

Demonstration of peristaltic movement

Answer 1

Explanation:

Do it by BODMAS rule of the day dear

Answer 2

Answer:

Peristaltic Movement:

Peristaltic movement refers to the contraction and relaxation that occurs in the oesophagus and the food pipe which forces the food down the track to the stomach. It is completely voluntary action and is highly important for the movement of food to stomach and the bowels down the anus. Peristaltic movement is the constriction and relaxation of esophageal muscles in the esophagus. It also occurs in stomach and small intestines. Peristaltic continually forces food through the digestive system.

It is a wave-like structure, which starts in the esophagus when the bolus of food is swallowed. The contraction and relaxation of the muscles during the peristaltic movement help in bringing down the food with the food pipe into the stomach. It is an important and automatic process which help in movement of food.

While you perform the demonstration of peristaltic movement in oesophagus, you need some basic apparatus such as bottle, balloons and scissors. Peristalsis is a symmetrical contraction and relaxation of muscles and most of the digestive tracts such as human gastrointestinal tract can produce some peristalsis waves.