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Re: Abdominal Vasculature

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Posted by Matt Oglesby on September 01, 2009 at 21:16:34:

In Reply to: Abdominal Vasculature posted by isz on September 01, 2009 at 20:39:03:

here are the answers, as I have understood them, through question 11.

Abdominal Vasculature

1.Name the arteries in order from the diaphragm (going inferior) of the aorta.

L/R Inferior Phrenic → Sup. Suprarenal (x3 each side)
Celiac Trunk (containing: Splenic, L. Gastric, Common Hepatic)
Middle Suprarenal
Superior Mesenteric → 1) Iliocolic & Appendicular, 2) R. Colic, 3) Middle Colic
Renal → Inf. Suprarenal
Lumbar

Gonadal (ovarian/testicular)
Lumbar

Inferior Mesenteric → 1) R. Colic, 2) Sup. Rectal, 3) Sigmoidal
Lumbar

Bifurcation of Abdominal Aorta → L/R Common Iliac
Middle Sacral

2.What are the vertebral levels of the origin of the celiac, superior mesenteric artery, and inferior mesenteric artery.
Superior portion of L1, inferior portion of L1, and L3 – respectively.

3.Draw out the course of the celiac artery.
4. Draw out the course of the inferior mesenteric artery?
5.Draw out the course of the superior mesenteric artery?

6.Why is the left renal vein and 3rd part of the duodenum susceptible to injury with respect to the aorta and superior mesenteric artery?

Renal Vein entrapment AKA “Nutcracker Syndrome.” Both vessels are sandwiched between aorta and the overlying Superior Mesenteric Artery.

7.What are arcades?

Looping portions of intestinal arteries off the superior mesenteric.
8.What is the vasculature providing blood supply to the duodenum and to the pancreas?

Gastroduodenal → Supraduodenal & Superior Anterior/Posterior Pancreaticoduodenal arteries

Superior Mesenteric → Inferior Ant./Post. Pancreaticoduodenal arteries

9.What are the vasa recta?

Latin translation = “straight vessels”
These run from the arcades of the intestinal arteries into the jejunum and ileum.

10.Discuss differences between the jejunum and the ileum.

Jejunum has:
1)larger diameter
2)larger circular folds (plicae circulares)
3)thicker walls
4)clear “windows”
5)longer vasa recta
6)simple arcades (single layer)

11.What are the "windows" of the mesentery in reference to the jejunum and the ileum?

The membranous tissue of the peritoneum.

Follow Ups:

Re: Abdominal Vasculature Aaron 10:13:36 9/02/2009 (3)
- Re: Abdominal Vasculature Dave Konopka 10:46:12 9/02/2009 (2)
  - Re: Abdominal Vasculature Nick Ahn 16:15:54 9/02/2009 (1)
    - Re: Abdominal Vasculature Matt Oglesby 19:12:12 9/02/2009 (0)
Re: Abdominal Vasculature Nick Ahn 22:07:18 9/01/2009 (3)
- Re: Abdominal Vasculature nicolai 03:50:57 9/11/2009 (0)
- Re: Abdominal Vasculature Matt Oglesby 22:20:54 9/01/2009 (1)
  - Re: Abdominal Vasculature Nick Ahn 22:33:25 9/01/2009 (0)

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Comments:
: here are the answers, as I have understood them, through question 11. : Abdominal Vasculature : : 1.Name the arteries in order from the diaphragm (going inferior) of the aorta. : : L/R Inferior Phrenic → Sup. Suprarenal (x3 each side) : Celiac Trunk (containing: Splenic, L. Gastric, Common Hepatic) : Middle Suprarenal : Superior Mesenteric → 1) Iliocolic & Appendicular, 2) R. Colic, 3) Middle Colic : Renal → Inf. Suprarenal : Lumbar : : : Gonadal (ovarian/testicular) : Lumbar : : : Inferior Mesenteric → 1) R. Colic, 2) Sup. Rectal, 3) Sigmoidal : Lumbar : : : Bifurcation of Abdominal Aorta → L/R Common Iliac : Middle Sacral : : 2.What are the vertebral levels of the origin of the celiac, superior mesenteric artery, and inferior mesenteric artery. : Superior portion of L1, inferior portion of L1, and L3 – respectively. : 3.Draw out the course of the celiac artery. : 4. Draw out the course of the inferior mesenteric artery? : 5.Draw out the course of the superior mesenteric artery? : 6.Why is the left renal vein and 3rd part of the duodenum susceptible to injury with respect to the aorta and superior mesenteric artery? : : Renal Vein entrapment AKA “Nutcracker Syndrome.” Both vessels are sandwiched between aorta and the overlying Superior Mesenteric Artery. : 7.What are arcades? : : Looping portions of intestinal arteries off the superior mesenteric. : 8.What is the vasculature providing blood supply to the duodenum and to the pancreas? : Gastroduodenal → Supraduodenal & Superior Anterior/Posterior Pancreaticoduodenal arteries : : Superior Mesenteric → Inferior Ant./Post. Pancreaticoduodenal arteries : 9.What are the vasa recta? : : Latin translation = “straight vessels” : These run from the arcades of the intestinal arteries into the jejunum and ileum. : 10.Discuss differences between the jejunum and the ileum. : : Jejunum has: : 1)larger diameter : 2)larger circular folds (plicae circulares) : 3)thicker walls : 4)clear “windows” : 5)longer vasa recta : 6)simple arcades (single layer) : 11.What are the "windows" of the mesentery in reference to the jejunum and the ileum? : The membranous tissue of the peritoneum.

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