This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal System, Subject name: Physiology
Antiperistalsis is naturally seen in which pa of the digestive tract? 
Select and explain. 
A. Stomach, B. Duodenum, C. Colon, D. Antiperistalsis does not occur normally
C: Colon
Answer: C: Colon 
Explanation: - Antiperistalsis occurs as a normal phenomenon from hepatic flexure of colon to the cecum. - Peristalsis followed by antiperistalsis, in this segment, allows complete absorption of water and electrolytes.