Subdural cavity
Cavum subdurale
Definition
The spinal subdural cavity is a potential space located between the spinal dura mater and the spinal arachnoid mater, external to the subarachnoid cavity and the pia mater.
References
Evans HE, de Lahunta A. Miller’s anatomy of the dog, 4th edition, Elsevier Saunders, St Louis, 2012.