SpinalCord
ArteriesofSpinalCord:Schema
Plate167
Posterior cerebral artery
Superior cerebellar artery
Basilar artery
Anterior inferior
cerebellar artery (AICA)
Posterior inferior
cerebellar artery (PICA)
Anterior spinal artery
Vertebral artery
Segmental
medullary arteries
Ascending cervical
artery
Cervical vertebrae
Anterior view
Posterior view
Deep cervical artery
Subclavian artery
Segmental
medullary artery
Posterior intercostal artery
Thoracic
vertebrae
Pial plexus
Posterior intercostal artery
Segmental
medullary artery
Lumbar artery
Anastomotic loops to
posterior spinal arteries
Lumbar
vertebrae
Lateral sacral
artery:
spinal branches
Sacrum
Posterior inferior cerebellar artery
Posterior spinal arteries
Vertebral artery
Segmental
medullary arteries
Deep cervical artery
Ascending cervical artery
Subclavian artery
Segmental
medullary arteries
Segmental
medullary arteries
Posterior
intercostal arteries
Anastomotic loops to
anterior spinal artery
Lumbar arteries
Lateral (or medial)
sacral arteries
Note:
All spinal nerve roots
have associated
radicular
or
segmental medullary arteries
.
Most roots have radicular
arteries (see Plate 168). Both
types of arteries run along
roots, but radicular arteries
end before reaching anterior
or posterior spinal arteries;
larger segmental medullary
arteries continue on to supply
a segment of these arteries.
Anterior radicular artery
(great radicular artery of
Adamkiewicz)
