Respuesta :
The movement in the small intestine that churn the materials being digested and mix them with intestinal secretions is called peristalsis.
Peristalsis refers to a series of wave-like muscle contractions that help food move through the digestive tract. It begins in the esophagus, where strong wave-like motions of smooth muscle transport swallowed food balls to the stomach. The food is churned into a liquid mixture called chyme, which moves into the small intestine to continue peristalsis.
Stretching out a piece of intestine will help you see the wave-like motion more clearly. The motion alternately mixes and shifts the chyme. This allows nutrients to enter the bloodstream via the small intestine's walls.
Peristalsis in the large intestine aids in the absorption of water from undigested food into the bloodstream. The remaining waste products are then excreted via the rectum and anus.
Learn more about peristalsis here:
https://brainly.com/question/15265456
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