Segmental medullary arteries are arteries of varying size in the thoracolumbar region that arise from segmental arteries of this region (posterior intercostal arteries or lumbar arteries) and pass through intervertebral foramina to supply the spinal cord.[1] They may join the anterior spinal artery.[2]
| Segmental medullary artery | |
|---|---|
 | |
| Details | |
| Branches | Anterior spinal artery |
| Identifiers | |
| Latin | arteria medullaris segmentalis |
| TA98 | A12.2.11.016 A12.2.08.007 A12.2.12.007 |
| TA2 | 4535 |
| FMA | 86039 |
| Anatomical terminology | |
The largest anterior segmental medullary artery is known as the artery of Adamkiewicz.[citation needed]
Anatomy
editDevelopment
editDuring embryological development, about 75% of the segmental medullary arteries regress, forming the thinner (anterior and posterior) radicular arteries (which supply the two roots and sensory ganglion of each spinal nerve); the remaining segmental medullary arteries persist to contribute arterial supply to the spinal cord, as well as giving rise to the aforementioned radicular arteries.[1]
Gallery
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References
edit- ^ a b Waschke, Jens; Böckers, Tobias M.; Paulsen, Friedrich; Arnold, Wolfgang; Bechmann, Ingo, eds. (2018). Sobotta Anatomy Textbook: English Edition with Latin Nomenclature (1st ed.). München: Elsevier. p. 623. ISBN 978-0-7020-6760-0.
- ^ Huntoon MA (2005). "Anatomy of the cervical intervertebral foramina: vulnerable arteries and ischemic neurologic injuries after transforaminal epidural injections". Pain. 117 (1–2): 104–11. doi:10.1016/j.pain.2005.05.030. PMID 16055268.
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