Meninges & Dura

Question 1

3 types of Meninges

Answer 1

Dura Mater
Arachnoid Mater
Pia Mater

Question 2

Where is CSF located

Answer 2

subarachnoid space which is between arachnoid mater and pia mater

Question 3

Dural septae

Answer 3

folds made out of meningeal dura that will restrict the movement of the brain within cranium

Question 4

Falx Cerebri

Answer 4

meningeal dura mater located vertically within the longitudinal cerebral fissure; attaches crista galli anteriorly and tentorium cerebelli posteriorly

Question 5

Tentorium Cerebelli

Answer 5

meningeal dura matter that courses horizontally between the temporal bone and internal lining of the occipital bone; separates occipital lobes of cerebrum from the cerebellum and encloses transverse and superior petrosal sinuses.

Question 6

Falx Cerebelli

Answer 6

small vertical extension of the tentorium cerebelli that projects inferiorly, separating the cerebellar lobes; contains the occipital sinus

Question 7

Leptomeninges

Answer 7

delicate membranes that cross the subarachnoid space and connect the arachnoid and pia layers

Question 8

Arachnoid granulations

Answer 8

highly folded arachnoid mater that projects into the superior sagittal sinus; serves as sites where CSF diffuses into the blood of the superior sagittal sinus

Question 9

Diaphragma sellae

Answer 9

horizontal hood of dura that covers the pituitary gland over the sella tucica

Question 10

Choroid Plexus

Answer 10

where CSF is made from blood plasma

Question 11

Cranial extradural space

Answer 11

pathological separation of dura mater from skull bone (ex: hemorrhage)

Question 12

Superior Sagittal Sinus

Answer 12

originates at the foramen cecum within the falx cerebri; courses along the skull sagittally and receives blood from superior cerebral veins and CSF via arachnoid granules; eventually drains into the confluence of sinuses