Meninges Flashcards

1
Q

Name the 3 Meninges, spaces in between and their order.

A

Epidural space
Dura Mater
Subdural Space
Arachnoid Mater
Subarachnoid Space
Pia Mater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name the Dural Reflections

A

Falx Cerebri
Falx Cerebelli
Diaphragma sellae
Tentorium cerebelli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The Dura Mater consist of 2 layers:

A
  • periosteal layer
  • Meningeal layer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Dural Venous Sinuses?

A

Where the 2 Dura mater layers separate to enclose blood-filled spaces.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name the falx cerebri’s location, attachments and borders.

A

Location
- extends from the cranial roof into the longitudinal fissure between the cerebral hemispheres, separating them
Attachments
- Anterior: bony ridge of the crista galli
- Posterior: internal occipital protuberance and becomes continuous with the tentorium cerebelli
Borders
- Attached: adheres to the inner surface of the skull
- Free: above the corpus collosum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name the tentorium cerebelli’s location

A

Separates the cerebrum from the cerebellum
Divides the intracranial space into compartments that contain the forebrain and the hindbrain
Becomes continuous with the falx cerebri in the midline
Contains the transverse, straight and superior petrosal sinuses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Describe the location of the Falx cerebelli

A

Projects from the midline of the occipital bone
Separates the right n left cerebellar hemispheres
House the occipital sinus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the location of the diaphragma sellae?

A

Covers the hypophyseal fossa of the sphenoid bone
Contains a small opening for passage of the stalk of the pituitary gland
Houses the anterior and posterior intercavernous sinuses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

*Subarachnoid cisterns

A

formed where significant depressions or fissures in the brain are spanned by the arachnoid mater.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

*Leptomeninges

A
  • pia mater
  • arachnoid mater
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Arterial supply of the Dura mater

A

Supplied by the middle meningeal artery and vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Innervation of the dura mater

A

by the trigeminal nerve (V1, V2 and V3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Functions of the Pia Mater

A

Physically separate the neural tissue from the blood
vessels in the subarachnoid space, adding to the efficacy
of the blood-brain barrier.
Contributes to the degradation of the neurotransmitters,
preventing their prolonged action on the nervous tissue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

*Epidural space

A

Potential space
Located between the dura mater and the bones of the cranium
local epidural anesthesia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

*Subdural space

A

Potential space
Located between the arachnoid mater and dura mater
Can develop as a result of haemorrhage inducing brain
trauma (e.g. subdural haematoma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

*Subarachnoid space

A

Real space
Located between arachnoid mater and pia mater
Contains CSF

17
Q

*Haematoma

A

collection of blood

18
Q

*Meningitis

A

Inflammation of the meninges resulting from infection with viruses, bacteria, fungi and protozoa