Dura mater

Dura mater is a thick membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. The other two meningeal layers are the pia mater and the arachnoid mater. The dura mater is responsible for keeping in the cerebrospinal fluid.

Structure

The dura mater is a thick, durable membrane, closest to the skull and vertebrae. The name "dura mater" derives from the Latin for "tough mother" (as a translation from Arabic) to denote its protective role. It is composed of two layers, the endosteal layer (closest to the skull), and the meningeal layer. The layers are normally fused, except in specific areas where they separate to form dural sinuses.

Function

The primary function of the dura mater is to protect the brain and spinal cord. It provides a supportive, protective enclosure for the brain and spinal cord and works in conjunction with the other meningeal layers, the cerebrospinal fluid, and the skull and vertebral column to safeguard the delicate tissues of the central nervous system.

Clinical significance

Inflammation of the dura mater, a condition known as dural inflammation, can result in severe headaches and other neurological symptoms. This can be caused by infection, direct injury, or as a result of surgery.

See also

• Meninges
• Pia mater
• Arachnoid mater
• Cerebrospinal fluid
• Dural sinuses

References

Dura mater Resources
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