Which is more efficient in propelling intestinal contents along the digestive tract: peristalsis or segmentation? Why?
A)segmentation; because it involves pushing the bolus forward
B)segmentation; because it involves mixing and churning
C)peristalsis; because it involves pushing the bolus forward
D)peristalsis; because it involves mixing and churning
E)both segmentation and peristalsis are equally effective at propelling intestinal contents along the digestive tract

Question

Quizplus · Accepted Answer

Peristalsis involves the contraction and relaxation of muscles in a wave-like motion, which propels the bolus forward through the digestive tract. This is more efficient in moving the contents along the tract as compared to segmentation, which involves mixing and churning without much forward movement.

Which Is More Efficient in Propelling Intestinal Contents Along the Digestive