Digestive System Flashcards
Give examples of intraperitoneal organs
Stomach, some of small intestine
Give examples of retroperitoneal organs
Pancreas, part of duodenum
What is an omentum?
Double layer of visceral peritoneum - attaches organ to organ
What is the mesentry?
Double layer of visceral peritoneum that attaches organ to body wall
What are the 4 layers of the GI tract?
Mucosa
Submucosa
Muscularis externa
Serosa/adventia
What type of tissue is mucosa?
Epithelium, connective tissue and smooth muscle
What type of tissue is submucosa?
Dense irregular connective tissue
WHat is the serosa?
Serous membrane that covers the structures within peritoneal cavity
What blood vessels supply the GI tract?
Celiac trunk, superior mesentreric artery and inferior mesentric artery
How is blood drained?
Via the hepatic portal system
Name 3 hormones that control digestive function
Gastrin, secretin, cholecystokinin (CCK)
What are carbohydrates broken down into?
Simple sugars
What are proteins broken down into?
amino acids
What are lipids broken down into?
Fatty acids & monoglycerides
What is broken down in the mouth?
Carbohydrates and lipids