HSS 2342 Chapter Notes - Chapter 3: Esophagus, Pylorus, Gastric Acid
29 Jan 2017
School
Department
Course
Professor
Document Summary
Tasks of the mouth: breaking down large piece of food with chewing and saliva. Diaphragm passage: moving from upper part of the body to lower abdomen. Steady movement: at a pace that allows completion of all digestive processes. Lubrication of food: ease passage and aid in digestive processes. Digestive enzyme functions: gi must protect from bad bacterium and etc. Management of waste: prevents intestinal contents from backing up into the stomach) Anatomy of the digestive tract the gi tract. Stomach adds juices and grinds up the food (bolus) into a semi-liquid mass called chyme. Chyme is then slowly released into the small intestine in a controlled manner that involves the opening of the pyloric sphincter. Thickest walls and strongest muscles of the gi tract: circular, longitudinal & diagonal muscles. The action of these muscles in concert ensures the digestion of the bolus into chyme. All directional muscles with stomach with longitudinal, circular, diagonal stomach muscles.
