Anatomy
Hindgut And Associated Arteries, Liver, Gall Bladder And Biliary Tree
Compiled By Muchiri Simon
Edition: 2024/25
, Medical & Nursing | Anatomy I of IV pages
1. Which artery supplies the hindgut?
Inferior mesenteric artery
2. At what vertebral level is the IMA given off?
L3
3. What components make up the hindgut?
Distal third of transverse colon, descending colon, sigmoid colon and rectum
4. Which vessels contribute to the formation of the marginal artery? What does it supply?
SMA: middle colicIMA: left colic, sigmoid
Supplies area around splenic flexure
5. Aortic aneurysms can compress the IMA. Why doesnt this impair gut function?
Due to collateral circulation supplied by the marginal artery
6. How is the sigmoid attached to the posterior body wall?
Sigmoid mesocolon
7. At what vertebral level does the sigmoid become the rectum?
S3
8. From the rectosigmoid junction, what changes can be seen in the structure of the hindgut?
Absence of taenia coli and appendices epiploicae
9. What is a sigmoid volvulus? Why is it a serious condition?
Obstruction of bowel due to twisting around sigmoid mesocolon
Can lead to chronic constipation, bowel ischaemia
10. The rectum runs from the __1__ to the __2__, about __3__ cm above the cutaneous margin of the anus
1) rectosigmoid junction2) ano-rectal junction3) 3
11. How many lateral curves are found in the rectum? What marks each curve on the interior?
Three
Each marked by a transverse fold or valve (2 on the left, middle one on the right)
12. What are the three main vessels (some may be paired) that supply the rectum?
Superior rectal
Middle rectal
Inferior rectal
13. From where does the superior rectal artery originate?
Inferior mesenteric artery
14. From where does the middle rectal artery originate?
Internal iliac
Anatomy 2024/25 Edition
Hindgut And Associated Arteries, Liver, Gall Bladder And Biliary Tree
Compiled By Muchiri Simon
Edition: 2024/25
, Medical & Nursing | Anatomy I of IV pages
1. Which artery supplies the hindgut?
Inferior mesenteric artery
2. At what vertebral level is the IMA given off?
L3
3. What components make up the hindgut?
Distal third of transverse colon, descending colon, sigmoid colon and rectum
4. Which vessels contribute to the formation of the marginal artery? What does it supply?
SMA: middle colicIMA: left colic, sigmoid
Supplies area around splenic flexure
5. Aortic aneurysms can compress the IMA. Why doesnt this impair gut function?
Due to collateral circulation supplied by the marginal artery
6. How is the sigmoid attached to the posterior body wall?
Sigmoid mesocolon
7. At what vertebral level does the sigmoid become the rectum?
S3
8. From the rectosigmoid junction, what changes can be seen in the structure of the hindgut?
Absence of taenia coli and appendices epiploicae
9. What is a sigmoid volvulus? Why is it a serious condition?
Obstruction of bowel due to twisting around sigmoid mesocolon
Can lead to chronic constipation, bowel ischaemia
10. The rectum runs from the __1__ to the __2__, about __3__ cm above the cutaneous margin of the anus
1) rectosigmoid junction2) ano-rectal junction3) 3
11. How many lateral curves are found in the rectum? What marks each curve on the interior?
Three
Each marked by a transverse fold or valve (2 on the left, middle one on the right)
12. What are the three main vessels (some may be paired) that supply the rectum?
Superior rectal
Middle rectal
Inferior rectal
13. From where does the superior rectal artery originate?
Inferior mesenteric artery
14. From where does the middle rectal artery originate?
Internal iliac
Anatomy 2024/25 Edition
