SDK
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1)Anterior spinal artery. br of vertebral A
Supply ventrolateral 2/3 of spinal cord(usually upto cervical region)
2)Two posterior spinal A. br of vertebral A
Posterior 1/3 of SC
3)Redicular A. br of vertebral A, ascending cervical, deep cervical, ICA, lumber A, Sacral A.
Most of the redicular A supply the nerve roots.
one large redicular A is KA Arteria redicularis magna. supply lower 2/3 of SC
4)Arteria vasocorona(lies in dura matter)
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