Colon (2 questions on final)

Question 1

Primary function of colon

Answer 1

absorption of water

Question 2

Functions of colon (3)

Answer 2

1. absorption of water
2. Compaction, lubrication, and elimination of feces
3. production of some vitamins (riboflavin, thiamin, vit K, and B 12) as bacterial by-products

Question 3

describe the musclular composition of the ME

Answer 3

Not normal pattern

Outer longitudinal muscle is gathered into bands called teniae coli and is discontinuous

constant tonus of teniae coli results in sacculations called haustra

Question 4

What are the sacculations that resuct from the constant tonus of teniae coli called?

Answer 4

Haustra

Question 5

Adventitia/Serosa

Answer 5

Mixed

1. acending and descending colons are adventitia posteriorly with some serosa
2. Transverse and sigmoid colon: mostly serosa