Dalley, 10th Edition

Chapter 2 ■ Back

138

Anterior inferior cerebellar artery Basilar artery Posterior inferior cerebellar artery

Vertebral artery

Posterior inferior cerebellar artery

Vertebral artery

Anterior spinal artery

Posterior spinal arteries

Anterior segmental medullary arteries

Cervical vertebrae

Posterior segmental medullary arteries Ascending cervical artery

Ascending cervical artery Deep cervical artery

Vertebral artery Deep cervical artery

Vertebral artery

Right subclavian artery

Right subclavian artery Posterior radicular arteries ( purple )

Anterior segmental medullary artery

Spinal branch Dorsal branch

Spinal branch

Posterior intercostal artery

Posterior intercostal arteries Posterior segmental medullary artery

Descending aorta

Thoracic vertebrae

Anterior radicular arteries ( purple )

Spinal branch

Posterior intercostal artery

Dorsal branch Spinal branch

Anterior segmental medullary artery

Dorsal branch

Posterior intercostal artery

Posterior intercostal artery Spinal branch Great anterior segmental medullary artery (of Adamkiewicz)

Posterior segmental medullary artery Conus medullaris

Anterior segmental medullary artery

Dorsal branch Spinal branch

Dorsal branch Spinal branch Lumbar artery Cauda equina

Lumbar artery

Lumbar vertebrae

Filum terminale

Median sacral artery

Internal iliac artery

Lateral sacral artery

Lateral sacral artery Copyright © 2027 Wolters Kluwer. Unauthorized reproduction of the article is prohibited.

Sacral vertebrae

Spinal branch

Spinal branches

FIGURE 2.53. Arterial supply of spinal cord. A and B. Three longitudinal arteries supply the spinal cord: an anterior spinal artery and two posterior spinal arteries. Radicular arteries are shown at only the cervical and thoracic levels, but they also occur at the lumbar and sacral levels. (A) Anterior view (B) Posterior view