ANP 1107 Lecture Notes - Lecture 2: Mucin, Esophageal Hiatus, Hepatocyte

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1107
• Professor: Jackie Carnegie

Document Summary

Teeth - in sockets (alveoli) in gum-covered margins of mandible/maxilla. Dr. jackie carnegie & dr. david lohnes: primary dentition are baby teeth/milk teeth/deciduous; 20 in total, permanent teeth are larger, deeper roots, and appear by the end of adolescence; 3rd molars appear btwn. Types of teeth: dental formula: permanent dentition. Pharynx (nasopharynx connects nose cavity to the oropharynx, not common passage way for food) Esophagus muscular tube ~25cm , collapse when empty. Straight down mediastinum of thorax, through diaphragm at esophageal hiatus and joins stomach at cardial orifice (surrounded by gatroesophageal sphincter, a physiological sphincter to keep food going down to stomach: diaphragm supports sphincter too. Small intestine major digestive organ and is responsible for absorption of virtually all nutrients and much of the water. Extends from pyloric sphincter (stomach duodenum) to the ileocecal valve. 6-7m long, but only 2m long in life b/c of muscle tone while alive. If they fail, they are prone to ulcers from hcl.