Central Nervous System (CNS) and Meninges

Flashcards covering key terminology and concepts related to the Central Nervous System and its protective coverings, the meninges.

Central Nervous System (CNS)

Consists of the brain and spinal cord.

Meninges

The three protective coverings of the brain and spinal cord.

Dura mater

The tough outermost layer of the meninges.

Arachnoid mater

The middle layer of the meninges, which has a spider-like appearance.

Pia mater

The delicate innermost layer of the meninges that follows the contours of the brain.

Falx cerebri

A partition of dura mater that separates the two hemispheres of the brain.

Tentorium cerebelli

A fold of dura mater that separates the cerebellum from the cerebrum.

Falx cerebelli

A partition of dura mater that separates the two hemispheres of the cerebellum.

Subdural space

A small space between the dura mater and the arachnoid mater, containing fluid to prevent friction.

Subarachnoid space

The space between the arachnoid mater and the pia mater, filled with cerebrospinal fluid (CSF).

Cerebrospinal Fluid (CSF)

The fluid that cushions and protects the brain and spinal cord.

Epidural space

The space between the dura mater and the vertebral wall; larger around the spinal cord than around the brain.

Crista galli

The attachment point for the meninges in the ethmoid bone.

Phylum terminale

A fibrous extension of the pia mater that anchors the spinal cord.

Meningitis

Inflammation of the meninges.

Subdural hematoma

A bruise or bleeding in the subdural space.