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ATI TEAS: GI System
This deck contains 20 flashcards covering key concepts related to the GI system, including its structure, functions, and processes. These flashcards will help you understand and remember the main components and processes of the GI system.
What is a weird name for the GI system?
Alimentary canal
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Key Terms
Term
Definition
What is a weird name for the GI system?
Alimentary canal
What are the 5 steps of digestion?
Ingestion, digestion, peristalsis, absorption, elimination
What are stomach folds called and what do they do?
Rugae; increase holding capacity to 1 liter
What is chyme?
Partially digested food with stomach gases
What is in gastric juice?
Mucus, HCL, and digestive enzymes
What do chief cells do?
Secrete pepsinogen, an inactive protein enzyme and the enzyme lipase which digest fats
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| Term | Definition |
|---|---|
What is a weird name for the GI system? | Alimentary canal |
What are the 5 steps of digestion? | Ingestion, digestion, peristalsis, absorption, elimination |
What are stomach folds called and what do they do? | Rugae; increase holding capacity to 1 liter |
What is chyme? | Partially digested food with stomach gases |
What is in gastric juice? | Mucus, HCL, and digestive enzymes |
What do chief cells do? | Secrete pepsinogen, an inactive protein enzyme and the enzyme lipase which digest fats |
What do parietal cells do? | Secrete HCL which activates pepsinogen to pepsin |
What do globlet cells do? | Secrete mucous for protection from hydrogen chloride |
What is gastrin? | A stomach hormone that signals more production of gastric juices |
What is grelin? | A stomach enzyme that stimulates appetite and fat storage |
What are the 3 regions of the small intestine? | Duodenum, jejunum, and ileum |
What do the liver and gall bladder do for the GI system? | Secrete bile to emulsify and break down fats |
What does the pancreas do for the GI system? | Secrete pancreatic juice with bicarb and enzymes and insulin and glucagon |
Where is enzymatic digestion completed? | Duodenum |
What happens in the jejunum? | Absorption of nutrients (b12) |
What are the sections of the large intestine? | Cecum, colon, rectum, anal canal |
What does the cecum do? | Houses the appendix, mixes bacteria with chyme |
What does the colon do? | Absorbs water and absorbs vitamin k |
What does the rectum do? | Stored fecal matter until it is ejected from the anus |
What is deglutination? | Swallowing |