Brainscape's Knowledge GenomeTM

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


See full index

Z Anatomy 2nd Bi > Cranial Meninges > Flashcards

Cranial Meninges Flashcards

1
Q

Internal to the cranium

A

Cranial Meninges

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

A fluid filled cavity vital to the normal fxn of the brain

A

Subarachnoid space

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

Protection
Supporting framework
Encloses subarachnoid

A

Cranial meninges

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

3 membranous CT layers

A

Dura mater
Arachnoid mater
Pia mater

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

Arachnoid and pia mater collectively make up the

A

Leptomeninx (slender membrane)

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

This contains the CSF and helps maintain the balance of ECF in the brain.

A

Subarachnoid or leptomeningeal space

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

Similar to blood in constitution but less protein and diff ion conc.

A

CSF

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

CSF is formed by

A

Choroid plexus of the four ventricles of the brain.

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

Leaves the ventricular system and enters the subsrachnoid space where it cushionc and nourishes the brain

A

CSF

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

Dense and bilaminar. Aka pachymeninx

Adherent to the internal table of the calvaria

A

Dura mater

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

Periosteum covering of th internal surface of the calvaria

A

External periosteal layer

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

Strong fibrous membrane that is continuous at the foramen magnum with the spinal dura covering the spinal cord

A

Internal meningeal layer

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

Its attachment is tenacious along the suture lines and in the cranial base and continuous at the cranial foramina.

A

External periosteal layer of dura

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

Intimately fused with the periosteal layer and cannot be separated from it
Except at where the dural sinuses and infoldings occur.

A

Internal meningeal layer

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

Separation of the 2 layers at the dural-cranial interface occurs only pathologically, creating an

A

Epidural space

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

Sustentacular layer that reflects away from the external periosteal to form ______

A

Internal meningeal–dural infoldings

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

Divide into compartments (septa) forming partial partitions of the brain and supporting other parts

A

Dural infoldings

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

Dural infoldings include

A

Falx cerebri
Tentorium cerebelli
Falx cerebelli
Diaphragm sellae

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

Largest infolding in the longitudinal cerebral fissure that separates the right and left cerebral hemispheres

A

Falx cerebri

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

Median: internal surface of the calvaria
Anteriorly: crista galli of the ethmoid bone
Posteriorly: internal ocipital protuberance

A

Falx cerebri

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

2nd largest wide crescentic septum that separates the occipital lobes of the cerebral hemispheres from ththe cerebellum

A

Tentorium cerebelli

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

Tentorium cerebelli attachments:

A

Rostrally: to the clinoid process of the sphenoid
Rostrolaterally: petrous part of the temporal bone
Posterolaterally: internal surface of the occipital bone and part of the parietal bone

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

Tentorium cerebelli divides the cranial cavity into:

A

Supratentorial and infratentorial

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

A gap Thru which the brainstwm extends from the posterior into the middle cranial fossa

A

Tentorisl notch

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

Brainstem

A

Midbrain
Pons
Medulla oblongata

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

Vertical. Inferior to the tentorium cerebelli in the posterior part of the posterior cranial fossa
Attach to the internal occipital crest and partially separates the cerebellar hemispheres

A

Falx cerebelli

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

Smallest dural infolding circular but covers the Pituitary gland and has an aperture for passage of the infundibulum and hypophysial veins

A

Diaphragm sellae

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

Diaphragm sellae is suspended between the

A

Clinoid processes forming a partial roof over the hypophysial fossa in the sphenoid

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

Endothelium lined spaces between the periosteal and meningeal layers of the dura. Where large veins from the surface of the brain empty into and most of the blood from the brainultimately drains into them

A

Dural venous sinuses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Form where the dural septa attach along the free edge of the fals cerebri

A

Dural venous sinuses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Lies in the convex attached border of the falx cerebri

Begins at the crista galli and ends near rhe internal occipital protuberance

A

Superior sagittal sinus

32
Q

A meeting place of the superior sagittal, straight, occipital, and transverse sinuses.

A

Confluence of sinuses

33
Q

Communicate with the superior sagittal sinus

Lateral expansions of it

A

Lateral venous lacunae

34
Q

Tufted prolongationsthat protrude thru the meningesl layer of the dura mater into the dural venous sinuses

Structurally adapted for the transport of CSF

A

Arachnoid granulations

Pacchionian bodies if enlarged

35
Q

Pits formed by pacchionian podies that erode bone in the calvaria

A

Granular foveolae

36
Q

Runs on the inferior concave free border of the falx cerebri and ends in the straight sinus

A

Infeior sagittal sinus

37
Q

Formed by the union of the inferior with the great cerebral vein and runs inferoposteriorly along the line of attachment of the falx cerebri to the tentorium cerebelli

A

Straight sinus

38
Q

Groove in the occipital bones and the postero-inferior angles of the parietal bones.

A

Transverse sinus

39
Q

This sinus course along the posterolateral attached margins of the tentorium cerebelli and become the_____

A

Transverse sinus–sigmois sinuses

40
Q

Deep grooves in the temporal snd occipital bones. Turns anteriorly and continues inferiorly as the IJV after transversing the jugular foramen

A

Sigmois sinus

41
Q

Lies in the attached border of the falx cerebelli and ends superiorly in the confluence

A

Occipital sinus

42
Q

Occipital sinus communicates inferiorly with the

A

Internal vertebral venous plexus

43
Q

A large venous plexus located on each side of the sella turnia on the upper surface of the body of the sphenoid.
Extends from the superior orbital fissure to the apex of the petrous part of the temporal bone

A

Cavernous sinus

44
Q

Cavernous sinus received blood from the (3)

A

Ophthalmic veins (S/In)
S middle cerebral vein
Sphenoparietal sinus

45
Q

Stalk of the pituitary gland venous channels

A

Intercavernouse sinuses

46
Q

The cavernous sinuses drain postero-inferiorly thru the S and In petrosal sinuses and emissary veins to the

A

Basilar and

Pterygoid plexuses

47
Q

Its small branched inside the cavernous sinuses are surrounded by the carotid plexus of sympathetic nerve/s and the abducent nerve.

A

Internal carotid artery

48
Q

Said to promote prupulsion of venous blood from the sinus

A

Pulsations of the artery, as does gravity

49
Q

From the posterior ends of the veins making up the cavernous sinus to the transverse sinuses at the site where these sinuses surve inferiorly to form the sigmoid sinuses.

A

Superior petrosal sinuses

50
Q

Each superior petrosal sinus lies in the anterolateral attwched margin of the

A

Tentorium cerebelli

51
Q

Commence at the posterior end of the cavernous sinus.

Runs in a groove between the petrous part of the temporal bone and the basilar part of the occipital bone

A

Inferior petrosal sinuses

52
Q

Drain the cavernous sinus directly into the transition of the sigmoid sinus to the IJV at the jugular foramen

A

Inferior petrosal sinus

53
Q

Connects the inferior petrosal sinuses and communicates inferiorly with the internal vertebral venous plexus

A

Basilar plexus

54
Q

Connects the dural venous sinuses with veins outside the cranium.

A

Emissary veins

55
Q

Presend in children and some adults
Passes thru the foramen cecum of the cranium, connecting the superior sagittal sinus with the veins of the fronts, sinus and nasal cavities

A

Frontal emissary vein

56
Q

Paired bilaterally passes thru the parietal foramen in the calvaria, connecting the S sagittal sinus with the veins external to it, particularly those in the scalp.

A

Parietal emissary vein

57
Q

Connects each sigmois sinus with the occipital or poesterior auricular vein

A

Mastoid emissary vein thru the mastoid foramen

58
Q

Passing thru the condylar canal, connecting the sigmoid sinus with the

A

Posterior condylar emissary vein–suboccipital venous plexus

59
Q

A branch of the maxillary artery, largest of the dura arteries

A

Middle meningeal artery

60
Q

MMA enters the fooor of the middle cranial fossa thru the

A

Foramen spinosum

61
Q

Runs laterally in the spinosum fossa and turns supero snteriorly on the greater wing of rhe sphenoid

A

MMA

62
Q

Runs superiorly to the pterion and then curves posteriorly to ascen toward the vertex of the cranium

A

Frontal branch of the MMA

63
Q

Runs posterosuperiorly and ramifies over the posterior aspect of the cranium.

A

Parietal branch of the MMA

64
Q

Middle meningeal veins drains into the

A

Pterygoid venous plexus

65
Q

The derivation of the arachnoid-pia feom a single embryonis layer is indicated in the adult by the numerous

A

Web-like arachnoid trabeculae hence the name

66
Q

Flattened irregularly shaped fibroblast that bridge the subarachnoid space

A

Arachnoid trabeculae

67
Q

Avascular, thin, unattached to the dura, held against the inner surface of the dura by the pressure of the CSF in the subsrachnoid space

A

Cranial arachnoid mater

68
Q

Thinner highly vascularized, fives the surface of the brain a shiny appearance as it adheres to it and follow its contours.

A

Cranial pia mater

69
Q

When the cerebral A penetrate the cerebral cortex, the pia then follow for a short distance, forming

A

Pial coat and peri-arterial space

70
Q

Between the cranium and the external periosteal layer of the dura. Not a natural space because attached to the bones.

A

Dura-cranial interface

71
Q

A natural space occupied by epidural fat and a venous plexus internal to the periosteum covering the vertebrae

A

Spinal epidural space

72
Q

Subarachnoid space contains

A

CSF
Trabecular cells
Arteries
Veins

73
Q

The brain is suspended in the CSF fills subarachnoid space by the arachnoid trabeculae

T/F

A

True

74
Q

Produces a rupture of the frontal branch of the MMA or V ceossing the pterion causing hematoma and death

A

Fracture of pterion

75
Q

Inflammation of the facial vein with secondary thrombus formation.

A

Thrombophlebitis of the facial veins.

Pcs of clots may extend into intracranial venous system-thrombophlebitis of the cavernous sinus

76
Q

Composed of flattened fibroblasts separated by large EC spaces

A

Dural border cell layer

77
Q

The temporal bone may be lacerated by the tough tentorium cerebelli and the oculomotor nerve may be stretched, compressed, or both.

A

Tentorial herniation

Z Anatomy 2nd Bi (5 decks)

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