Which of these statements does NOT concern segmentation in the small intestine
A)It is the primary means of motility in the small intestine during digestion of a meal.
B)It is both mixing and propulsive.
C)It refers to sequential ringlike contractions that sweep downward, creating a stripping motion that pushes chyme forward.
D)It occurs at regular intervals.

Question

Quizplus · Accepted Answer

Statement C describes peristalsis, not segmentation. Segmentation refers to the ringlike contractions that create a mixing and grinding motion in the small intestine, while peristalsis refers to the coordinated wave-like contractions that propel food forward through the digestive tract.

Which of These Statements Does NOT Concern Segmentation in the Small