12. Arteries of Large Intestine

Question 1

Identify 1 -> 2

Answer 1

1. Superior mesenteric artery
2. Middle colic artery

Question 2

Identify 3

Answer 2

3. Straight arteries (arteriae rectae)

Question 3

Identify 4 -> 6

Answer 3

4. Marginal artery
5. Right colic artery
6. Ileocolic artery (Colic branch; Ileal branch)

Question 4

Identify 7

Answer 4

7. Appendicular artery

Question 5

Identify 8

Answer 5

8. Superior rectal artery

Question 6

Identify 9 -> 12

Answer 6

9. Sigmoid arteries
10. Left colic artery
11. Inferior mesenteric artery
12. Jejunal and ileal (intestinal) arteries

Question 7

What does the superior mesenteric artery supply?

Answer 7

the adult gastrointestinal tract derivatives of the embryonic midgut

(The midgut gives rise to the remainder of the small intestine as well as the ascending colon and oral 2⁄3 of the transverse colon.)

Question 8

The superior mesenteric artery supplies blood to the adult gastrointestinal tract derivatives of the embryonic midgut.

→ These include arteries to ___ (6 parts)

Answer 8

1. a portion of the pancreas
2. the distal duodenum
3. all of the small intestine
4. the appendix
5. the ascending colon
6. most of the transverse colon.

Question 9

The inferior mesenteric artery supplies ___

Answer 9

the embryonic hindgut derivatives: the distal transverse colon, descending and sigmoid colon, and superior portion of the rectum.

Question 10

What are the embryonic hindgut derivatives?

Answer 10

the distal transverse colon, descending and sigmoid colon, and superior portion of the rectum.

Question 11

Anastomotic channels exist between the branches of the superior and inferior mesenteric arteries.

→ If the blood flow from one bowel region is compromised, ____ from anastomotic branches usually can assist in supplying blood to the compromised region.

Answer 11

collateral flow