What is the term for the contraction and relaxation of intestines that helps move feces?

Peristalsis is the term that describes the contraction and relaxation of the muscles in the intestines that facilitates the movement of feces through the digestive tract. This involuntary process involves rhythmic waves of muscle contractions that push the contents of the intestines forward, allowing for efficient digestion and elimination of waste.

In the context of digestion, peristalsis plays a crucial role after food is ingested and is necessary for moving both liquid and solid waste toward the rectum for eventual elimination. Understanding peristalsis is essential for those studying CNA practices, as it links directly to patient care related to digestive health.

While digestion refers to the breakdown of food into nutrients, and defecation specifically refers to the act of eliminating feces from the body, secretion relates to the process of producing and releasing substances like enzymes and hormones involved in digestion. These terms highlight different aspects of the digestive process, but peristalsis is the key mechanism that ensures the physical movement of feces.