Chapter 15-2 Flashcards Preview

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Pancreatic amylase

Digest carbs

1

Pancreatic lipase

Digest fat

2

Pancreatic nuclease

Digests nucleic acid

3

Trypsin

Digest protein

4

Why must proteolytic enzymes be secreted in an inactive form

Because they digest protein

5

Hormone that stimulates secretion of pancreatic juice with high concentration of bicarbonate ions

Secretin

6

What is the function of bicarbonate ions

Neutralize acid of chyme

7

What's the function of cholecystokinin

Hormone that stimulates secretion of pancreatic juice with high concentration of digestive enzyme

8

Livers functional units

Hepatic lobules

9

State the functions of the liver

Metabolizes carbs, lipids, and proteins
Stores glycogen, iron, vit A, D, and B12
Filters blood
Detoxification
Secretes bile

10

What is the most abundant composition of bile

Bile salts

11

Why don't new bile salts have to be made everyday

90% of bile salts are re absorbed by liver

12

Function of the gall bladder

Stores bile between meals

13

What causes gall stones

Cholesterol in bile may form crystals

14

What is cholecystectomy

Surgical removal of the gall bladder

15

Function of bile salts

Emulsification of fat (breaks it down into smaller droplets)
Aid absorption of fatty acids, cholesterol, and vitamin A,D,E,K

16

Uppermost part, 10 inches long, most fixed portion

Duodenum

17

2nd part, 8 ft long

Jejunum

18

Last part, 12 ft long

Ileum

19

Double layered membrane that suspends and supports small intestine

Mesentery

20

Tiny projections of mucous membrane increasing surface area aiding in absorption

Villi

21

List 3 secretions of the small intestine

Mucus, watery neutral fluid, digestive enzyme

22

Final product villi absorbs

Monosaccharides, amino acids, fatty acids, and glycerol

23

Explain ileocecal sphincter

Muscle that controls the movement of intestine contents from small to large intestine

24

First 2-3 in. Of large intestine

Cecum

25

Narrow tube with closed end projecting from cecum

Vermiform appendix

26

Extends from cecum to anus

Colon

27

Last few centimeters of large intestine

Anal canal

28

Opening to exterior

Anus

29

Compare and contrast structure of small and large intestine

Both composed of same type of tissue
L: lacks Villi and blood vessels
S: has intentional glands