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HIGH SCHOOL

Biology

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Anatomy and Physiology

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Digestive System

Small Intestine Enzymes and Mixing Movements

Description

The small intestine uses mixing movements and enzymes to finish digestion. It performs both mechanical digestion and chemical digestion. These steps help break food into forms the body can absorb.

Mechanical digestion in the small intestine includes segmentations and migrating motility complexes,...

Transcript

Mechanical digestion in the small intestine involves two types of movements — segmentations and migration motility complexes or MMC.

Segmentations are localized contractions triggered by the distention of the intestinal wall by chyme. This movement helps chyme mix with digestive juices and facilitates nutrient absorption.

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