ANSC3103 Lecture Notes - Lecture 21: Enteropeptidase, Micelle, Trachea
29 Jul 2018
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Document Summary
Deglutition (swallowing: voluntary the bolus is formed and pushed to the pharync, steps: Small intestines: digestive segmentation and peristalsis. Large intestines: segmentation, peristalsis and anti peristalsis, the defaecation reflex is activated by distention of the rectum. Secretions saliva: composition water, protein, glycoprotein, electrolytes, function: Liver: structure: lobes of hepatocytes that are attached to the diaphragm and duodenum by ligaments, blood supply are from the hepatic artery from the arterial blood. Portal vein is the blood from the intestines, spleen and pancreas filtering: function, bile for lipid solubilisation, components phospholipids, cholesterol, bilirubin (which gives bile the green colour), bile acids. It"s a stimulus for fats in the duodenum and triggers a cck release: gallbladder sphincter relaxes (widens) bile ducts duodenum, absorbed in the ileum, enterohepatic recirculation to the liver through the portal vein. Luminal: enzymatic digestion disaccharide or oligosaccharide, they are short peptides and solubilized lipids.
