Figure 22.8 • Motility in the Colon – The colon is specialized for storage, and when bands of longitudinal muscle (taenia coli) contract, they form haustra. This is called segmental propulsion, which is very slow, and allows time for additional sodium and fluid absorption (colonic salvage). The slow movement dries out the chyme, producing feces. Several times a day mass movements will occur, creating peristaltic movements that force the chyme/feces toward the rectum. Factors that increase intestinal motility can cause diarrhea, by minimizing formation of haustrae and increasing mass movements.
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Netter's Essential Physiology
Author: Susan E. Mulroney, Adam K. Myers
Chapter: Motility Through the Gastrointestinal Tract
Page: 263
Author: Susan E. Mulroney, Adam K. Myers
Chapter: Motility Through the Gastrointestinal Tract
Page: 263
Netter's Gastroenterology
Author: Martin H. Floch, MD, Neil R. Floch and Kris V. Kowdley
Chapter: Colon, Rectum, and Anus
Page: 430
Author: Martin H. Floch, MD, Neil R. Floch and Kris V. Kowdley
Chapter: Colon, Rectum, and Anus
Page: 430
Netter's Atlas of Human Physiology
Author: John T. Hansen, PhD and Bruce M. Koeppen, MD, PhD
Chapter: Gastrointestinal Physiology
Page: 162
Author: John T. Hansen, PhD and Bruce M. Koeppen, MD, PhD
Chapter: Gastrointestinal Physiology
Page: 162
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