Lateral sacral artery
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| Lateral sacral artery | |
|---|---|
| File:Internal iliac branches.PNG Internal iliac artery and some branches. Lateral sacral artery labeled at upper right. | |
| File:Gray586.png The iliac veins. (Lateral sacral labeled at bottom left.) | |
| Details | |
| Source | Internal iliac artery |
| Vein | Lateral sacral veins |
| Supplies | Erector spinae, piriformis muscle, sacral canal |
| Identifiers | |
| Latin | arteriae sacrales laterales |
| TA98 | Lua error in Module:Wikidata at line 746: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terminology [[[d:Lua error in Module:Wikidata at line 865: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]] | |
The lateral sacral arteries is an artery in the pelvis that arises from the posterior division of the internal iliac artery. It later splits into two smaller branches, a superior and an inferior.
Structure
[edit | edit source]The lateral sacral artery is the second branch of the posterior division of the internal iliac artery.[1][2] It is a parietal branch.[3]
Superior
[edit | edit source]The superior, of large size, passes medialward, and, after anastomosing with branches from the middle sacral, enters the first or second anterior sacral foramen, supplies branches to the contents of the sacral canal, and, escaping by the corresponding posterior sacral foramen, is distributed to the skin and muscles on the dorsum of the sacrum, anastomosing with the superior gluteal.
Inferior
[edit | edit source]The inferior runs obliquely across the front of the piriformis and the sacral nerves to the medial side of the anterior sacral foramina, descends on the front of the sacrum, and anastomoses over the coccyx with the middle sacral and opposite lateral sacral artery.
In its course it gives off branches, which enter the anterior sacral foramina; these, after supplying the contents of the sacral canal, escapes by the posterior sacral foramina, and are distributed to the muscles and skin on the dorsal surface of the sacrum, anastomosing with the gluteal arteries.
Function
[edit | edit source]The lateral sacral arteries supplies oxygenated blood to the cauda equina.[3]
See also
[edit | edit source]Additional images
[edit | edit source]-
Iliopelvic glands (lateral view).
References
[edit | edit source]Public domain This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
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External links
[edit | edit source]- Anatomy photo:43:13-0104 at the SUNY Downstate Medical Center - "The Female Pelvis: Branches of Internal Iliac Artery"
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