Which of the following statements correctly describes peristalsis?
A) It is a process of fat emulsification in the small intestine.
B) It triggers voluntary control of the urethral sphincters regulating urination.
C) It causes the transport of nutrients to the liver through the hepatic portal vessel.
D) It results from smooth muscle contractions that move food along the esophagus.

Question

Quizplus · Accepted Answer

Peristalsis is the series of wave-like muscle contractions that moves food to different processing stations in the digestive tract. It is most notably responsible for moving food down the esophagus and through the intestines, not related to fat emulsification, control of urination, or direct nutrient transport to the liver.

Which of the Following Statements Correctly Describes Peristalsis