P5 PHYSIOLOGY

Question 1

functions of colon

Answer 1

Absorption , storage

Question 2

mixing movement of colon called

Answer 2

haustrations

Question 3

most of the absorption happens at which parts of colon

Answer 3

Ascending and transverse colon

Question 4

Through what plexus afferent signals spread through

Answer 4

myenteric plexus

Question 5

only secretion in colon

Answer 5

mucus

Question 6

mucus secretions are stimulated via

Answer 6

1- direct tactile stimulation
2- local nervous reflexes
3- pelvic nerve stimulation

Question 7

what type of mucus can be stimulated by emotional disturbances

Answer 7

ropy mucus

Question 8

local nervous reflexes to mucus cells are located in

Answer 8

crypts of lieberkuhn

Question 9

functions of mucus

Answer 9

Protection of the wall
Adhering medium for feces , protection against bacterial activity

Question 10

functions of bacteria

Answer 10

digest cellulose , formation of vitamins
flatus

Question 11

Bacteria help in formation of what vitamins

Answer 11

Vitamin K , B12, B1,B2

Question 12

what ions get reabsorbed in colon

Answer 12

Na ,Cl

Question 13

in which part of the colon storage takes place

Answer 13

distal colon

Question 14

what ions get secreted with feces

Answer 14

K , HCO3

Question 15

what structure prevent back flow of ions

Answer 15

tight junctions

Question 16

Maximum absorption capacity of large intestine

Answer 16

5-8 liters / day