blood supply to midgut & hindgut Flashcards

1
Q

what are the branches of the abdominal aorta that supply the midgut & hindgut? include spinal level

A

superior (L1) and inferior (L3) mesenteric arteries

SMA behind ulcinate process of pancreas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what are the branches of the SMA?

A

middle colic
right colic
ileocolic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what are the branches which arise from the ileocolic?

A

cecal and ileo branch

supplies caecum and terminal ileum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what are the branches arising from the right colic artery?

A

inferior branch of right colic and superior branch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what does the inferior branch of the right colic join onto?

A

anastamoses with the ileocolic branch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what does the superior branch of right colic supply?

A

ascending colon via giving off branches along the length of ascending colon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what does the right colic anastamose with?

A

the middle colic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

why does the right colic anastamose with the middle colic artery?

A

to continue blood supply from the ascending to the transverse colon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what does the middle colic from SMA supply?

A

the transverse colon (middle colon)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what are the branches of the middle colic artery?

A

left and right branch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the function of the left branch of middle colic artery?

A

to anastamose with right colic artery around hepatic / right colic flexure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what do the middle colic branches supply

A

the proximal 2/3 of transverse colon (up to the 3rd part of the duodenum)
runs above uncinate process of pancreas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what branches does the IMA give rise to?

A

left colic branch

sigmoid arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what does the IMA continue to become? where?

A

becomes the superior rectal artery, continuous of IMA beyond the pelvis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what does the middle colic artery (SMA) anastamose with?

A

left colic branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is the artery which joins the midgut blood supply (SMA) to the hindgut blood supply (IMA)?

A

the marginal artery

17
Q

what does the left colic branch of IMA supply?

A

the descending colon

18
Q

how does the left colic branch of IMA supply the descending colon?

A

via ascending and descending branches of the left colic artery (gives off branches along the length of the descending colon)

19
Q

what do the sigmoid arteries supply?

A

the sigmoid colon

20
Q

what do all the IMA branches have?

A

all arteries have connections with each other - including branches

21
Q

what does the superior rectal artery supply?

A

branches to rectum