Chapter 44

Question 1

Both the large and small intestines absorb and secrete what?

Answer 1

Fluid and electrolytes

Question 2

Only the small intestine absorbs?

Answer 2

Nutrients

Question 3

The small intestine has what sort of organization?

Answer 3

Villus crypt organization

Question 4

The large intestine (colon) has what sort of organization?

Answer 4

Surface epithelial cells with interspersed crypts

Question 5

The surface area of the small intestine is amplified by what?

Answer 5

Folds, villi, and microvilli

Question 6

Which is more amplified in terms of surface area, the small intestine or colon?

Answer 6

Small intestine

Question 7

How much fluid is delivered per day to the small intestine?

Answer 7

8.5 L fluid/day

Question 8

How much fluid does the small intestine absorb per day?

Answer 8

6.5 L fluid/day

Question 9

How much fluid does the large intestine absorb per day?

Answer 9

1.9 L fluid/day

Question 10

The small intestine absorbs net amounts of what electrolytes?

Answer 10

Water, Na+, Cl-, K+. BUT SECRETES HCO3-

Question 11

The colon absorbs net amounts of what electrolytes?

Answer 11

Water, Na+, Cl-. BUT SECRETES K+ AND HCO3-

Question 12

The small and large intestines absorb and secrete solutes by what mechanism(s)?

Answer 12

Active and passive transport mechanisms

Question 13

Intestinal fluid movement is always coupled to?

Answer 13

Solute movement

Question 14

Solute movement is coupled to intestinal fluid movement through what scenario?

Answer 14

Solvent drag