Intestines

Question 1

What is the fx of the DD?

Answer 1

Gastric acid neutralisation, Digestion and Iron Absorbtion

Question 2

fx of JJ?

Answer 2

nutrient absorption

Question 3

fx of ileum?

Answer 3

nacl and h20 absorption

Question 4

What do crypts secrete in SI?

Answer 4

cl and water

Question 5

name two types of movement in the intestine?

Answer 5

Segmentational

Peristaltic

Question 6

what does parasymp inv do to segmental contraction?

Answer 6

Increases it

Question 7

What hormone initiates MMC?

Answer 7

motilin

Question 8

what mediates peristalsis?

Answer 8

neurones in myenteric plexu

Question 9

which muscular layer of the LI is incomplete?

Answer 9

Longitudinal layer

Question 10

In the rectum which muscular layer is skeltal?

Answer 10

External sphincter

Question 11

What is the fx of the LI with regard to Na and h20?

Answer 11

Pumps na and h20 into blood

Question 12

Which nerve supplys defication?

Answer 12

pelvic splachnic = parasymp

Question 13

What are examples of enterotoxigenic bacteria

Answer 13

Vibrio cholerae

E.coli

Question 14

what do enterotoxigenic bacteria do with regard to cl?

Answer 14

turn on chloride secretion from crypts all the way up leads to diarrhea, via cAMP, cGMP and Ca