MEDT200 Chapter Notes - Chapter 5: Achalasia, Sublingual Gland, Volvulus

• School: University of Delaware
• Department: Medical Laboratory Sciences
• Course: MEDT200
• Professor: Don Lehman

Document Summary

Digestion: food broken down mechanically and physically, digestive enzymes speed up process, complex --> less complex. Absorption: nutrients pass through cells of the intestines and pass into the blood stream, cells break down nutrients in the presence of oxygen to release energy. Elimination: solid waste materials that cannot pass through into the blood stream, large intestine concentrates solid waste into feces and it passes through the anus, anatomy of the digestive system: Aids in the production of sound and speech: tongue- extends across the floor of the oral cavity and muscles attach it to the lower jawbone. Moves food during mastication (chewing) and deglutition (swallowing: papillae- small raised areas of the tongue, there are also rings of muscles (sphincters) to control the openings into and out of the stomach. Lower esophageal sphincters- relaxes and contracts to allow food bolus to enter the stomach from the esophagus.