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1. The spinal branches of the vertebral artery were injected with a suspension of barium sulphate and the blood supply of the vertebral bodies of the lower four or five cervical vertebrae investigated radiologically.2. Beneath the posterior longitudinal ligament there is a free dorsal arterial plexus from which a large branch arises to enter the back of the vertebral body. This vessel terminates abruptly at the centre of the body where numerous, much smaller, branches radiate towards the upper and lower surfaces.3. The possible significance of the form of the intravertebral arteries is considered in relation to embolic lesion in vertebral bodies.

THE ARTERIAL SUPPLY TO THE ADULT CERVICAL VERTEBRAL BODIES