Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Head And Neck > Cranial Meninges > Flashcards

Cranial Meninges Flashcards

1
Q

What are cranial meninges?

A

Coverings of the brain that lie immediately internal to the cranium

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

Purpose of the meninges

A

Protect the brain and form the supporting framework for arteries, veins, and venous sinuses

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

The cranial meninges are composed of what membranous layers?

A

Dura mater

Arachnoid mater

Pia mater

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

Leptomeninx includes the:

And are separated by ____ ___, which contains:

A

Arachnoid and pia maters

Subarachnoid space

Cerebrospinal fluid

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

____ provides nutrients to the brain. It is formed by the ___ ___ within:

A

CSF

Choroid plexuses

The 4 ventricles of the brain

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

A two-layered membrane that is adherent to the internal surface of the cranium

A

Dura mater

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

2 laters of the dura mater

A

Periosteal layer

Meningeal layer

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

The periosteal layer of the dura mater is formed by the ______ covering the internal surface of the ____.

A

Periosteum

Calvaria

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

The meningeal layer of the dura mater is a ___ ____ membrane that is continuous with the:

A

Strong fibrous

Meningeal layer covering the spinal cord

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

What forms the dural infoldings (reflections)?

A

The internal meningeal layer of the dura reflecting away from the external periosteal layer of the dura

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Purpose of the dural infoldings

A

Divides the cranial cavity into compartments and support parts of the brain

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

What are the dural reflections?

A

Falx cerebri

Tentorium cerebelli

Falx cerebelli

Diaphragmatic sellae

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

The falx cerebri is a _____-shaped partition that lies in the ________ fissure that separates the:

A

Sickle

Longitudinal

Right and left cerebral hemispheres

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

The flax cerebri extends from the ___ ___ of the frontal bone and the ___ ___ of the ethmoid bone anteriorly to the ____ ____ ____ posteriorly

A

Frontal crest

Crista Galli

Internal occipital protuberance

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

The falx cerebri ends _____ by becoming continuous with the ___ ___.

A

Posteriorly

Tentorium cerebelli

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

The falx cerebri attaches to the ____ ____ in the _____ and holds it up, giving it a tent-like appearance

A

Tentorium cerebelli

Midline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The tentorium cerebelli is a wide ____ ___ that separates the ___ ___ of the cerebral hemispheres from the cerebellum

A

Crescentic septum

Occipital lobes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The tentorium cerebelli attaches anteriorly to the ___ ____ of the sphenoid bone, anterolaterally to the ___ ___ of the temporal bone, and posterolateral to the _____ ____ of the occipital bone

A

Clinoid process

Petrous part

Internal surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the tentorial notch?

A

The anteromedial concave free border, through which the brain stem extends from the posterior into the middle cranial fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The tentorium cerebelli divides the cranial cavity into _______ and _____ compartments

A

Supratentorial

Infratentorial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The falx cerebelli is a _____ dural infoldings that lies inf to the ____ ___ and partially separates the:

A

Vertical

Tentorium cerebelli

Cerebellar hemispheres

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The diaphragma sellae is the ____ and a ___ sheet of dural infolding that is suspended between the ___ ____, forming a partial roof over the ______ fossa.

A

Smallest

Circular

Clinoid processes

Hypophysial fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What are the dural venous sinuses

A

Endothelial-lined spaces between the periosteal and meningeal layers of the dura

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Dural venous tributaries are the veins from the:

A

Surface of the brain and from the fipole of the skull

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What are the dural venous sinuses?

A

Superior Sagittal sinus

Inf Sagittal sinus

Straight sinus

Transverse sinuses

Sigmoid sinuses

Occipital sinus

Cavernous sinus

Superior petrosal sinuses

Inf petrosal sinuses

Emissary veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Where does the superior Sagittal sinus lie?

A

In the convex attached (superior) border of the falx cerebri

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

The sup. Sagittal sinus begins at the ___ ___ and ends near the __ ___ ___ at the:

A

Crista galli

Internal occipital protuberance

Confluence of sinuses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

lateral expansions of the sup sagittal sinus

A

lateral venous lacunae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

the sup sagittal sinus receives the ____ ___ veins and communicates on each side through with the ___ ___ ___.

A

sup cerebral veins

lateral venous lacunae

30
Q

what are arachnoid granulations

A

(collections of arachnoid villi)
Tufted prolongations of the arachnoid that protrude through the meningeal layer of the dura mater into the dural venous sinuses and lateral venous lacunae

31
Q

What transfers the CSF to the venous system?

A

arachnoid granulations

32
Q

which is smaller, superior or inferior sagittal sinus?

A

inferior

33
Q

the inf sagittal sinus runs in the _____ ____ ___ border of the ____ ____ and ends in the ___ ___.

A

inferior free concave

falx cerebri

straight sinus

34
Q

The straight sinus is formed by what?

A

the union of the inf sagittal sinus w/ the great cerebral vein

35
Q

the straight sinus runs ______ along the line of attachment of the ___ ____ to the ____ ____ to join the:

A

inferoposteriorly

falx cerebri

tenrorium cerebelli

confluence of sinuses

36
Q

the trasverse sinuses pass laterally from the ____ ___ ___ in the ____ attached margin of the ____ _____, grooving the:

A

confluence of sinuses

posterior

tentorium cerebelli

occipital bones

37
Q

The transverse sinuses become the ___ ____ at the posterior aspect of the ___ ____ __

A

sigmoid sinuses

petrous temporal bone

38
Q

The sigmoid sinuses follow the __-shaped courses in the __ ___ ___, forming deep grooves where?

A

S

post cranial fossa

temporal and occipital bones

39
Q

after forming deep grooves in the temporal and occipital bones, the sigmoid sinuses turn ____, then continue ___ as the ____ after transversing the _____

A

anteriorly

inferiorly

IJVs

jugular foramen

40
Q

the occipital sinus lies in the attached border of ___ ____ and ends ____ in the:

A

falx cerebelli

superiorly

confluence of sinuses

41
Q

The occipital sinus communicates _____ with the :

A

inferiorly

internal vertebral venous plexus

42
Q

the cavernous sinus is located bilaterally on each side of the ___ ____ on the body of the ___ bone

A

sella turcica

sphenoid

43
Q

the cavernous sinus consists of (THICK/THIN)-walled veins that extend from the ___ ___ ___ anteriorly to the _________ posteriorly

A

sup orbital fissure

apex of the petrous part of the temporal bone

44
Q

contents in the cavernous sinus

A

internal carotid art

abducent nerve (CN V1)

45
Q

contents in the lateral wall of each cavernous sinus

A

oculomotor nerve (CN III)

trochlear nerve (CN IV)

CN V1 and CN V2 divisions of the trigeminal nerve

46
Q

tributaries to the cavernous sinus

A

sup and inf ophthalmic veins

superficial middle cerebral vein

sphenoparietal sinus

sup and inf petrosal sinuses

pterygoid venous plexuses (through emissary veins)

intercavernous sinuses

47
Q

the intercavernous sinuses and and post to the _____ of the ____ gland communicate:

A

infundibulum

pituitary

the cavernous sinuses w/ each other

48
Q

the sup petrosal sinuses run from the post end of the ___ ___ to join the ___ ___, there they curve inferiorly to form the:

A

cavernous sinuses

transverse sinuses

sigmoid sinuses

49
Q

each sup petrosal sinus lies in the _____ attached margin of the ____ ____, which attaches to the:

A

anterolateral

tentorium cerebelli

sup border of the petrous part of the temporal bone

50
Q

the inf petrosal sinuses begin at the post end of the ____ ___ and drain them directly into the origin of the:

A

cavernous sinuses

IJVs

51
Q

what connects the inf petrosal sinuses w/ the internal vertebral venous plexus?

A

basilar plexus

52
Q

what connects the dural venous sinuses w veins outside the cranium

A

emissary veins

53
Q

arteries of the dura mater

A

middle meningeal artery (with anterior and posterior branches)

54
Q

the middle meningeal art is a branch of:

A

maxillary artery

55
Q

the middle meningeal art enders the ____ cranial fossa through the:

A

middle

foramen spinosum

56
Q

the ant branch of the middle meningeal art runs superiorly to the _____ then curves ____ to ascend toward the:

A

pterion

posteriorly

vertex of the cranium

57
Q

the post branch of the middle meningeal art runs ______ and ramifies over the ____ aspect of the cranium

A

posterosuperiorly

posterior

58
Q

veins of the dura accompany the:

A

meningeal arteries

59
Q

innervation of the dura mater

A

3 divisions of CN V (main innervation)

Vagus (CN X) and hypoglassal (CN XII)

sup 3 cervical nerves

60
Q

the arachnoid mater and pia mater (___) develop from:

A

leptomeninx

a single layer of mesenchyme surrounding the embryonic brain

61
Q

what passes between the arachnoid and pia

A

arachnoid trabeculae

62
Q

which is an avascular layer– arachnoid or pia?

A

arachnoid mater

63
Q

the pia mater is a (THICK/THIN) membrane that is highly _____ by a network of fine ___ ____ and adheres to the surface of the ____ and follows its ___

A

thin

vascularized

blood vessels

brain

contours

64
Q

what are the 3 meningeal spaces

A

epidural space

subdural space

subarachnoid space

65
Q

where is the epidural space located

A

between the cranium and external periosteal layer of the dura

it is not a natural space

66
Q

when does the epidural space become a space?

A

pathologically (blood extravasation)

67
Q

location of the subdural space

A

between dura and arachnoic (not a potential space)

68
Q

location of the subarachnoic space

A

between arachnoid and pia

69
Q

the subarachnoid is a ___ space that contains:

A

real

CSF
Trabecular cells
cerebral arteries

70
Q

review clinical relevance. not sure he will ask theses

A

head injuries and such

Head And Neck (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions