PHSI 208 Lecture Notes - Lecture 1: Thoracic Cavity, Gastric Acid, Salivary Gland
Document Summary
By the end of this lecture series, understand how the digestive system contributes to energy balance. Why do some individuals eat more than necessary? (genetic and environmental factors for obesity, diabetes, etc. ) In order to keep energy balanced, intake needs to be balanced with energy expenditure. (food intake energy loss in feces and urine) = energy expenditure. Broken down into the duodenum, jejenum, and ileum. Large intestine (colon): there are three components to the colon; the ascending, transverse and descending. Liver & gall bladder: these are considered accessory organs. These empty their secretions into the major tube of the gi (duodenum area). Appendix: harbours friendly bacteria that replenish microflora after diarrhea. Oral cavity pharynx esophagus (in thoracic cavity) stomach (in abdominal cavity . Duodenum jejenum ileum cecum (start of large intestine) ascending, transverse, descending colon (large intestine) sigmoid colon rectum. Oral cavity (mouth): tongue is used to move food into mouth.
