Tags: Anatomical Structure, Vein.
The spinal veins (veins of the medulla spinalis or veins of the spinal cord) are situated in the pia mater and form a minute tortuous venous plexus. They emerge chiefly from the median fissures of the medulla spinalis and are largest in the lumbar region. In this plexus there are: (1) two median longitudinal veins one in front of the anterior fissure and the other behind the posterior sulcus of the cord. (2) four lateral longitudinal veins which run behind the nerve roots.
