Dura mater

Dura mater


The dura mater is the outermost and most fibrous of the three membranes (meninges) which cover the brain and spinal cord. The pia mater and arachnoid mater make up the remaining layers of the meninges, with the pia mater being the innermost layer. 

The dura is folded at certain points:-

  • Falx cerebri - this separates the two cerebral hemispheres of the brain
  • Tentorium cerebelli - this separates the cerebellum from the cerebrum
  • Falx cerebelli - this separates the cerebellar hemispheres
  • Sellar diaphragm - this covers the pituitary gland and forms a roof over the hypophysial fossa