Define peristalsis. What is the direction of normal peristalsis? [2 MARKS]
Definition: 1 Mark
Direction: 1 Mark
Peristalsis is a series of wave-like muscle contractions that help in moving food to different processing areas in the digestive tract.
The process of peristalsis begins in the oesophagus when a bolus of food is swallowed and moves till the anus.