Quiz 3: Meninges & Ventricles Flashcards
1
Q
Meninges
A
Protective coverings: dura mater (hard mother), arachnoid membrane, & pia mater (soft mother)
2
Q
Dura mater
A
Hard mother.
Outermost membrane covering which is thick, fiberlike and tough.
Has sensory receptors
3
Q
Arachnoid membrane
A
Under dura mater.
Weblike matting with spaces containing cerebrospinal fluid flowing to brain and spinal cord.
4
Q
Pia mater
A
Soft mother.
Thinnest membrane that is closest to brain.
5
Q
Ventricles
A
Spaces filled with cerebrospinal fluid to protect brain against injury.
Four ventricles: 2 lateral, third, and fourth ventricles.
6
Q
Lateral ventricles
A
One in each hemisphere.
Each has 3 horns to supply CSF to brain lobes.
7
Q
Third ventricle
A
Narrow duct at diencephalon level
8
Q
Fourth ventricle
A
Located in front of cerebellum & behind pons
