Inferior mesenteric artery
The inferior mesenteric artery ("lower intestinal artery ") is a large, unpaired artery in the abdominal cavity . In humans, it arises from the abdominal aorta at the level of the third lumbar vertebra . It supplies the descending colon and the upper part of the rectum . In veterinary anatomy, it is called the caudal mesenteric artery ("posterior intestinal artery ") due to the different body orientation .
From the inferior / caudal mesenteric artery originate:
- Arteria colica sinistra (left colon artery ): It divides into an ascending and a descending branch.
- Arteriae sigmoideae (sigmoid colon arteries ): As a rule, three A. sigmoideae are represented in the literature. It is also possible for two of them to arise with a common starting section of the inferior mesenteric artery. The middle sigmoid artery usually divides into two branches that anastomose like an arcade at the level of the other arcades of the sigmoid artery arcade arch.
- Arteria rectalis superior (upper rectum artery) (Animals: Arteria rectalis cranialis ): It divides into two branches that follow the sides of the rectum.
The inferior mesenteric artery is on the Riolan anastomosis with the superior mesenteric artery connected.
Individual evidence
- ↑ FCAT - Federative Committee on Anatomical Terminology: Terminologia Anatomica. Thieme, Stuttgart et al. 1998, ISBN 3-13-114361-4 .
- ^ World Association of Veterinary Anatomists - International Committee on Veterinary Gross Anatomical Nomenclature: Nomina Anatomica Veterinaria. 4th edition. International Committee on Veterinary Gross Anatomical Nomenclature et al., Zurich et al. 1994, ISBN 0-9600444-7-7 .
literature
- Uwe Gille: Cardiovascular and immune system, Angiologia. In: Franz-Viktor Salomon, Hans Geyer, Uwe Gille (Ed.): Anatomy for veterinary medicine. 2nd, revised and expanded edition. Enke, Stuttgart 2008, ISBN 978-3-8304-1075-1 , pp. 404-463.