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Peristalsis
Peristalsis is a sequence of muscle contractions that moves material along the digestive tract. It also pushes swallowed food through the oesophagus.
Original explanations based on the cited sources.
Peristalsis is a sequence of muscle contractions that moves material along the digestive tract. It also pushes swallowed food through the oesophagus.
Original explanations based on the cited sources.