Powerful contractions that occur a few times each day in the colon are called
A) segmentation.
B) tonic contractions.
C) phasic contractions.
D) peristalsis.
E) mass movements.

Question

Quizplus · Accepted Answer

Mass movements are powerful contractions that occur a few times each day in the colon to move feces toward the rectum and anus for elimination. Segmentation is a type of contractions in the small intestine that mix and break down the chyme. Tonic contractions are sustained contractions that occur in smooth muscles to maintain a certain level of tension. Phasic contractions are rapid contractions that occur in smooth muscles, such as the muscular layer of the stomach, to mix and propel substances. Peristalsis refers to the wave-like contractions that occur in the muscular walls of the digestive tract to move contents along the tract.

Powerful Contractions That Occur a Few Times Each Day in the Colon