The spinal cord is secured by a few layers of tissue, called spinal meninges, that surround the trench. The dura mater is the uttermost layer, and it shapes a solid protective blanket. Between the dura mater and the surrounding bone of the vertebrae is a space called the epidural space. The epidural space is filled with bloated tissue, and it keeps a framework of blood red overflow vessels. The arachnoid mater is the inside protective layer. Its name claims establishes in the way that the tissue has a spiderweb-for example indication. The space between the arachnoid and the underlyng pia mater is called the subarachnoid space. The subarachnoid space keeps cerebrospinal fluid (CSF). The helpful procedure presumed to be a lumbar cut (or spinal tap) incorporates use of a needle to withdraw cerebrospinal fluid from the subarachnoid space, as a tenet from the lumbar region of the spine. The pia mater is the deepest preventive layer. It is truly delicate and it is tightly associated with the surface of the spinal rope. The string is stabilized within the dura mater by the uniting denticulate ligaments, which connect from the incorporating pia mater in the side between the dorsal and ventral roots. The dural sac completes at the vertebral level of the second sacral vertebra.
Originally posted: November 18, 2012