NU 110 EXAM 3 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

NU 110 EXAM 3 UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
1. Function of Digestive System
Answer:
Ingest digest absorb excrete

Question:
2. Mouth
Answer:
Ingestion

Question:
3. Saliva
Answer:
lubricates food
breaks down carbs with the enzyme salivary amylase

Question:
4. Simple Carbs
Answer:
Mono
- glucose
- frutose
- maltose
Di
- Lactose
- sucrose

Question:
5. Complex Carbs
Answer:
Poly
- Starches
- Fiber

Question:
6. Tongue
Answer:
swallows/deglutiton

Question:
7. Pharnyx

,Answer:
oro and laryngo

Question:
8. Esophagus
Answer:
tube that carries food to stomach
moves by perstalsis

Question:
9. LES
Answer:
you have to go through the LES to get into the stomach

Question:
10. Stomach function
Answer:
digestion of protiens
Contains:
- pepsin(enzyme)
- Hcl acid

Question:
11. Chyme
Answer:
pepsin + Hcl + partially digested foods

Question:
12. Essential amino acids
Answer:
have to eat, body does NOT make them

Question:
13. Nonessential amino acids
Answer:
The body manufactures these

Question:
14. Stomach structures
Answer:
1. Fundus
2. Body (rugae-folds)
3. Pylorus

Question:
15. Gastrin

, Answer:
hormone secreted in the stomach that stimulates secretion of HCl and increases gastric motility

Question:
16. Pyloric Sphincter
Answer:
Exit of the stomach

Question:
17. Small intestine function
Answer:
secretes digestive enzymes, buffers, and hormones; absorbs nutrients

Question:
18. Duodenum
Answer:
first part of the small intestine

Question:
19. CCK
Answer:
stimulates gall bladder to secrete bile to emulsify fats in the small intestine

Question:
20. Bile
Answer:
A substance produced by the liver that breaks up fat particles.

Question:
21. pancreatic enzymes
Answer:
1. Trypsin- breaks down proteins
2. Lipase- breaks down fats
3. Amylase- breaks down carbs

Question:
22. Secretin
Answer:
A hormone secreted by the small intestine (duodenum) in response to low pH (e.g., from stomach acid). It
promotes the release of bicarbonate from the pancreas to act as a buffer.

Question:
23. Structures of the Small Intestine
Answer:
duodenum, jejunum, ileum