Propulsion is the movement of gastric contents from the body of the stomach to the antrum. This movement is brought about by
A) elastic recoil
B) diffusion
C) opsonization
D) segmentation
E) peristalsis

Question

Quizplus · Accepted Answer

Peristalsis is the series of coordinated muscle contractions that move the chyme (combination of food and digestive juices) down the gastrointestinal tract. In the case of the stomach, peristalsis is responsible for moving the gastric contents from the body of the stomach to the antrum, where further mixing and digestion occurs. Elastic recoil and diffusion are not mechanisms involved in propulsion in the digestive system. Opsonization is a process involving the coating of foreign substances with immune proteins to enhance their recognition and destruction by immune cells, and is not involved in digestion or propulsion. Segmentation is a type of movement of the small intestine that involves the mixing of chyme with digestive enzymes, rather than propulsion.

Propulsion Is the Movement of Gastric Contents from the Body