Question

The contraction and expansion movement of the walls of food pipe are called

Answer 1

The muscular movement that pushes the food down the oesophagus is called peristalsis.

Answer 2

Peristalsis is the right answer.  Peristalsis is a form of wave-like movement that happens in the gastrointestinal tract and involves muscular contraction and relaxation. It starts in the esophagus and aids in the movement of food along the alimentary canal during the digestive process.

Your digestive tract engages in a sort of involuntary muscular movement known as peristalsis. When you swallow, it starts in your throat and keeps moving food and liquids along your gastrointestinal tract.

Your GI tract can be visualised as a collection of hollow organs connected to form a single, continuous channel. Muscles and nerves line that channel. Nerves cause the muscles to contract when food or liquids reach the GI tract, starting a series of contractions

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