GENERAL FEATURES OF THE GI TRACT Flashcards Preview

GASTRO-INTESTINAL MEDICINE AND HEPATOLOGY > GENERAL FEATURES OF THE GI TRACT > Flashcards

Flashcards in GENERAL FEATURES OF THE GI TRACT Deck (16):
1

What is the name of the outer most layer (away from the lumen) of any part of the GI tract?

Serosa

2

What is found directly underneath (towards the lumen) the serosa in the GI tract?

Longitudinal muscle

3

What is found directly underneath (towards the lumen) the longitudinal muscle in the GI tract?

Circular muscle

4

What is the name of the layer found below (towards the lumen) of the GI tract?

Submucosa

5

What is the name of the inner most layer (containing the lumen) of the GI tract?

Mucosa - split into epithelium, lamina propria and muscularis mucosa.

6

In which layer of the GI tract do you find the body of the glands secreting the digestive enzymes?

Submucosa

7

What is the function of the circular muscle layer in the GI tract?

To mix the contents of the lumen

8

What is the function of the longitudinal muscle in the GI tract?

Peristalsis

9

What are the two types of innervation to the GI tract?

Intrinsic
Extrinsic - autonomic (sympathetic and parasympathetic)

10

Which cells are responsible for secreting gastrin?

APUD cells - more specifically G cells

11

What does APUD stand for, with regard to the hormone secreting cells in the GI tract?

Amine Precursor Uptake and Decarboxylation

12

What are the branches of the coeliac artery?

Splenic artery
Gastric artery
Hepatic artery

13

Which organ(s) does the splenic artery supply?

Spleen
Pancreas

14

What is the name of the artery that supplies the small intestine as well as part of the pancreas?

Superior mesenteric artery

15

What is the name of the artery that supplies the large intestine?

Inferior mesenteric artery

16

Which organs does the portal vein drain?

Stomach
Spleen
Pancreas
Small intestine
Large intestine