Functions of GI tract Flashcards
Describe the basic function of the oral cavity
- receives food
- chews food
- starts digestion
Describe the basic function of the salivary glands
-produces saliva & enzymes
Describe the basic function of the oesophagus
-swallows food
squamous epithelium, submucous glands
Describe the basic function of the stomach
-digests food
Describe the basic function of the intestines
- digests food
- absorbs food
- absorbs water
- resists bugs
mucosa - highly folded
- vili have smaller folds
- microvili (SA for absorption)
lamina propia - rich vascular system
contains - endocrine cells, smooth muscle, ganglion cells, interstitial cells of cajal
What do parietal cells secrete?
HCL
What do chief cells secrete?
Pepsinogen
lipase
Describe the basic function of the duodenum
- digests food
- absorbs food
- resists bugs
Describe the basic function of the intestines
- digests food
- absorbs food
- resists bugs
Describe the basic function of the colon
- digests food
- absorbs food
- resists bugs
describe the parts of GI tract
oral cavity, oseophagus, stomach, duodenum, jejunum, ileum, large intestine/colon (ascending, transverse, decesending)