ANAT200 Lecture Notes - Lecture 18: Ascending Colon, Common Bile Duct, Goblet Cell

• School: University of Alberta
• Department: Anatomy
• Course: ANAT200
• Professor: multiple

Document Summary

Enamel hardest biological matter (crystalized calcium sulfate) Dentum bulk of tooth muscle made with this, differs from bone because it doesn"t contain living cells, maintained by pulp cells. Pulp vascularized tissue, has nerves and receives blood vessels. Gingiva its epithelial cells from tight attachments to prevent bacterial access to lamina propria of gigiva or soft cement of root. Periodontal ligament layer of collagen fiber anchors the tooth. Root canals blood vessles and nerves tracel to pulp through here. Pharynx: initiates swallowing, uvula controls reflex, naso, oro, and laryngo pahryx make up pharynx, pharyngeal constrictors (superior, middle, and inferior) push bolus toward esophagus. Esophagus: digestive tube 3 parts: mucosa, submuscoa, muscularis, mucosa. Lumen essentially connected to outside world, it"s the innermost layer of tube. Epithelium non keratinized stratified squamous epithelium that can resist stress & abrasion. Lamina propria has blood vessels (absorption), sensory nerve endings, lymphatic vessels, smooth muscle fibers & scattered areas of lymphoid tissue.