Posterior spinal artery

Posterior spinal artery
The three major arteries of the cerebellum: the SCA, AICA, and PICA. (Posterior spinal artery is not labeled, but region is visible.)
Details
SourceVertebral or
posterior inferior cerebellar
BranchesDescending and ascending branch
VeinPosterior spinal veins
Identifiers
Latinarteria spinalis posterior
TA98A12.2.08.013
TA24543
FMA50522
Anatomical terminology

The posterior spinal artery (dorsal spinal arteries) arises from the vertebral artery in 25% of humans or the posterior inferior cerebellar artery in 75% of humans, adjacent to the medulla oblongata.[citation needed] It is usually double, and spans the length of the spinal cord. It supplies the grey and white posterior columns of the spinal cord.[1]

  1. ^ Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). p. 491. ISBN 978-0-7295-3752-0.