CAPS 391 Study Guide - Hydrophile, Chymotrypsinogen, Bile Canaliculus

• School: UBC
• Department: Cellular, Anatomical and Physiological Sciences
• Course: CAPS 391
• Professor: Bruce Matheson

Document Summary

Between pharynx/stomach, 25cm long, in mediastinum (posterior to trachea, anterior to vertebrae, parallel to thoracic descending aorta). Passes through esophagul hiatus * (opening) of diaphragm, ends in stomach, food from pharynx to stomach. 4 tunics in wall > mucosa, submucosa, muscularis, adventitia. Muscular tunic > outer longitudinal layer, inner circular layer, skeletal muscle in superior esophagus and smooth in inferior. Upper esophageal sphincter + lower esophageal sphincter > regulate mvmnt of materials in/out of esophagus. Mucous glands in submucosal layer > thick lubricating mucous, passes through ducts to surface of esophageal mucosa. Gastroesophageal opening > opening from esophagus into stomach (cardiac opening) Fundus > part of stomach superior to cardiac opening. Body > largest part of stomach w/ greater/lesser curvatures. Pyloric antrum > wider part of funnel towards body of stomach. Pyloric orifice > opens pyloric canal into small intestine. Pyloric sphincter > surrounds pyloric orifice, thick ring of smooth muscle, regulates movement of gastric contents into small intestine.