Lumbosacral anterolateral spinal arteries and brief review of "accessory" longitudinal arteries of the spinal cord.
Clin Anat
; 12(3): 171-8, 1999.
Article
en En
| MEDLINE
| ID: mdl-10340457
The lumbosacral anterolateral spinal arteries (LALSA) were studied in 14 injected lumbosacral spinal cords. Contrary to many previously published opinions, which claimed that virtually all of the formerly described "accessory" longitudinal arteries of the vasa corona, were too inconstant to be of significance, the LALSA in this series were reliably present bilaterally and averaged a length of 8.4 cm. They ran in the acute angles formed by the emergence of the fascicles of the lumbosacral anterior spinal nerve roots and in this position, served as the origin for most of the proximal radicular arteries that supply the cranial half of the motor roots of the cauda equina. A review of the literature and analysis of other accessory longitudinal spinal arteries revealed that two other pairs of accessory spinal vessels, the lateral cervical spinal arteries (LCSA) and the lateral spinal arterial axes (LSA), have a demonstrable functional role and were sufficiently constant, along with the LALSA, to warrant inclusion in detailed descriptions of human spinal cord vasculature.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Médula Espinal
/
Región Lumbosacra
Límite:
Humans
Idioma:
En
Revista:
Clin Anat
Asunto de la revista:
ANATOMIA
Año:
1999
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos