ANATOMY 328 Lecture Notes - Lecture 35: Anal Sinuses, Circulatory System, Sigmoid Colon
Document Summary
Small intestine: longest part of the alimentary canal; 6-7 meters (20 feet) in an preserved cadaver, finishes chemical digestion, most nutrient absorption occurs here, three specific segments, duodenum, jejunum, ileum. Intestinal crypts: stem cells: renew epithelium every 3-6 days, paneth cells: secrete antimicrobial peptides. Gallbladder: attached to the inferior surface of the right lobe of the liver, gallbladder function: stores bile, bile functions, digestion of fats, transport cholesterol out of the body. Liver: upper right quadrant, largest gland in the body, weighs about 3 lbs. in an average adult, four incompletely separated lobes, right lobe, left lobe, caudate lobe, quadrate lobe. Inferior surface: inferior vena cava, gallbladder, porta hepatis: where vessels, bile ducts, and nerves enter/exit the liver. Which structure was likely compressed by the tumor: answer: common bile duct. Small intestine: jejunum, middle portion of the small intestine, primary region for chemical digestion and nutrient absorption.
