Receptive relaxation refers to relaxation of the __________________
A) pharyngoesophageal sphincter during swallowing
B) pyloric sphincter when the duodenum is prepared to receive the chyme
C) external anal sphincter when the individual is receptive to the defecation reflex
D) stomach as it starts to fill, thereby allowing an increase in volume with very little increase in pressure

Question

Quizplus · Accepted Answer

Receptive relaxation refers to relaxation of the stomach as it starts to fill, thereby allowing an increase in volume with very little increase in pressure. This is important for efficient digestion and can be elicited by hormones such as gastrin and neural input from the vagus nerve. Option A refers to swallowing, option B refers to the exit of chyme from the stomach to the duodenum, and option C refers to the control of defecation.

Receptive Relaxation Refers to Relaxation of the __________________