In fact, it is the menynx interposed between the internal surface of the bones of the skull and vertebral column, and the arachnoid, which is the intermediate menynx.
Thick and resistant, the dura mater is made up of a fibrous connective tissue rich in collagen and elastin, and which also includes a component of flat cells, essential to make the dura mater itself an impermeable structure to the passage of the cerebrospinal fluid.
The dura mater is the only one of the 3 meninges to be significantly perfused and innervated.
With the support of the other two underlying meninges, the dura mater is responsible for protecting the brain and spinal cord.
The dura mater can be subject to various medical conditions (including meningitis, epidural hematoma, etc.) and diagnostic / therapeutic procedures (lumbar puncture and epidural anesthesia).
