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Chapter 24 Digestive System. Digestive Processes Ingestion Movement / peristalsis Digestion (chemical & mechanical) Absorption Defecation.

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Presentation on theme: "Chapter 24 Digestive System. Digestive Processes Ingestion Movement / peristalsis Digestion (chemical & mechanical) Absorption Defecation."— Presentation transcript:

1 Chapter 24 Digestive System

2 Digestive Processes Ingestion Movement / peristalsis Digestion (chemical & mechanical) Absorption Defecation

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5 Anatomical Terms Peritoneum (visceral & parietal) Mesentery Falciform ligament Omentum (lesser & greater) Mesocolon

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19 Gastric Digestion Zymogenic (peptic) (Chief) cells = pepsin Parietal (oxyntic) cells = HCl Mucous cells Enteroendocrine cells = gastrin Gastric lipase & rennin

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24 Liver Function Carbohydrate metabolism Fat metabolism Protein metabolism Removal of drugs & hormones Excretion of bile Synthesis of bile salts Storage of vitamins, minerals and glycogen Phagocytosis of WBC’s and RBC’s Activation of vitamin D Removal of toxins (includes ammonia) Manufactures heparin

25 Bile Bile consists of water, bile salts, cholesterol, phospholipids, bile pigments and ions. Bile pigment consists of iron, globin, and bilirubin (from the heme). Iron and globin are recycled some bilirubin is excreted in bile.

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31 Pancreas Islets of Langerhans produce insulin and glucagon Acini produce pancreatic juice – –Sodium bicarbonate –Amylase –Trypsin –Lipase –Ribonuclease –Deoxyribonuclease

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38 Intestinal Juice Water and mucus Maltase, Sucrase and lactase Peptidase Ribonuclease Deoxyribonuclease Lactose intolerance = no lactase

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46 Summary Chart on Digestion

47 Terms & Diseases Caries and plaque Peritonitis Peptic ulcers Appendicitis Tumors Cirrhosis

48 More terms Diverticulosis, diverticulitis, diverticulum Hepatitis Biliary calculi (gallstones) Borborygmus Cholecystitis Cholelithiasis Colitis Colostomy

49 More Terms Dysphagia Hernia Ascites Bruxism Laparoscopy Pancreatitis Pyloric stenosis Lithotrypsy


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