Smooth muscle in the digestive tract shows rhythmic cycles of activity because of the presence of pacesetter cells, which are found in both the muscularis mucosae and muscular layer that surround the lumen of the digestive tract.

Question

Quizplus · Accepted Answer

Smooth muscle in the digestive tract does indeed show rhythmic cycles of activity due to the presence of pacesetter cells, which are found in both the muscularis mucosae and muscular layer that surround the lumen of the digestive tract. These pacesetter cells help coordinate the contraction and relaxation of the smooth muscle, which helps move food and waste through the digestive system.

Smooth Muscle in the Digestive Tract Shows Rhythmic Cycles of Activity