Radicular artery

Supply The radicular arteries are crucial for adequate arterial supply of most of the spinal cord as the anterior and posterior spinal artery do not provide sufficient arterial supply to the spinal cord by themselves - with the exception of the cervical portion of the spinal cord. An injury to a spinal nerve may thus also entail an injury to the corresponding radicular artery with consequent ischaemic damage to the corresponding spinal cord segment. The radicular arteries additionally provide arterial supply to the posterior and anterior roots of a spinal nerve as well as the sensory ganglion. ==Relationship with segmental medullary arteries ==

In the thoracolumbar region, most segmental medullary arteries regress during early development to form radicular arteries; those that persist give off radicular arteries as branches. == References ==