Cranial Meninges Flashcards
* = bolded words or highlighted pts by hiim (90 cards)
1
Q
*What are the layers of the meninges surrounding the brain and SC
A
Dura Mater
Arachnoid mater
Pia mater
2
Q
*_____ dura is adherent to the arachnoid mater
A
cranial dura
3
Q
The space btw the dura and arachnoid mater occurs only if there is ______
A
bleeding
4
Q
c.c. There is only a ______ space when there is bleeding in the cranial region
A
SUBDURAL space
5
Q
- The ______ space is the space btw the arachnod and pia mater
A
subarachnoid space
6
Q
- ____________ space is filled with CSF
A
subarachnoid space
7
Q
CSF returns to blood via _____
A
arachnoid granulations
8
Q
The arachnoid granulosus projects into the _____
A
superior sagittal sinus
9
Q
______ is the dilated area of subarachnoid space btw cerebrellum and the brain stem
A
cisternal magnum
10
Q
What two layers make up the Dura Mater in the cranial region
A
periosteal layer- against bone
meningeal layer - against arachnoid mater
11
Q
______ layer of the dura mater comes into contact with the arachnoid mater
A
meningeal layer
12
Q
Is the Pia mater avascular/ vascular?
A
vascular
13
Q
_______ mater dips into the sulci and fissures of the brain
A
pia mater
14
Q
What is on the anterior surface of the head?
A
FACE!!!
hahah got ya!
15
Q
_____ veins run on the pia mater within the subarachnoid space
A
cerebral veins
16
Q
cerebral veins run within the _____ space
A
subarachnoid space
17
Q
Where is CSF produced
A
choroid plexus
located in the ventricles
18
Q
Cerebral veins form the _______ that fuses with ependyma to form the ______
A
veins form- tela choroidea
forms- choroid plexuses
19
Q
_____: the thin epithelial membrane lining the ventricular system of the brain and the spinal cord.
A
ependyma
type of neuroglia
20
Q
- ____mater passes over the sulci
A
arachnoid
21
Q
_____ space contains CSF
A
subarachnoid space
22
Q
- The subarachnoid space has dilated portions called _____
A
cisterns
23
Q
- Collections of ______ form arachnoid granulations
A
arachnoid villi
prolongations of pia-arachnoid
24
Q
_____: a term used to refer to the pia mater and arachnoid mater
A
leptomeninges
25
_____layer of the dura mater form dural sheaths of the cranial nerves
meningeal layer
26
_______ become the epineurium of the CN
dural sheaths
| formed by the meningeal layer of the dura mater
27
_____ form inward projecting septa called dural septa
dura mater
28
____ are venous channels btw the meningeal and periosteal layers
dural sinuses
29
* dural sinuses are found btw the ____& ___ layers
meiningeal layer
periosteal layer
(of the dura mater)
30
c.c Epidural hematoma if the ______ breaks
pterion
31
c.c. What artery if affected if the pterion breaks
middle meningeal artery
32
c.c. What area is affected if there is a epidural hemotoma of the middle meningeal artery (on Left side)
Brocca's area = affects speech
33
c.c______ space is effected if there is hemorrhage that separates the dura mater from the bone
cranial extradural space
34
In the spinal dura mater there is only the ______ layer
meningeal layer
| no periosteum layer
35
two branches of the middle meningeal artery
frontal artery
| parietal artery
36
_____ are inward extensions of the dura mater
dural septa
37
name 4 dural septa
falx cerebri
tentorium cerebelli
falx cerebelli
diaphragm sellae
38
______ is the dural septa that is located in the longitudinal fissure. It separates the two cerebral hemispheres
falx cerebri
39
flaxi cerebri is located in the _____ fissure. It separates the _____ hemispheres
longitudinal fissures
separates cerebral hemispheres
40
____: is the dural septa that separates the occipital lobe from the cerebrellum
tentorium cerebelli
41
the tentorium cerebelli separates the ______ lobe from the ___
occipital lobe from the cerebrellum
| aka cerebrum and cerebellum
42
______ is a medial dural fold btw the two cerebellar hemispheres
falx cerebelli
43
falx cerebelli separates the two _____ hemispheres
cerebellar hemispheres
44
_____: is the dural septa that forms a roof over the sella turcica
diaphragm sellae
45
fxn of the dural septa
prevents lateral displacement of the brain
46
Falx cerebri attachments
ant- crista galli & frontal crest
Post- IOP
47
falx cerebelli boney attachments
IOP along the int. occipital crest
- foramen magnum
48
Diaphragma sellae boney attachments
clinoid process of the sella turcia
49
Where is the pituitary gland houses
sella tursica
50
through what dura septa is the opening for the infadibullium to pass through
diaphragma sellae
51
The infadibulla is the connection btw which two structures
hypothalmus & pituitary gland
52
_____: a spacialized venous channel that is formed btw the 2 layers of the dura
dural sinuses
53
___ sinus is located along the superior convex margin of falx cerebri
superior sagittal sinus
54
_____ sinus is located along the inferir free boarder of falx cerebri
inferior sagittal sinus
55
____ sinus is located at the line of the falx cerebri and the tentorium cerebelli
straight sinus
56
_____sinus: occupies the attached margin of the tentorium
transverse sinus
57
___sinus: grooves the mastoid part of the temporal bone. It begins at the conti of the trasnverse sinus
sigmoid sinuse
58
The sigmoid sinus comes from the transverse singus and drains into the ____
IJV
@ the jugular foramen
59
_____ sinus : communicates with the internal vertebral venous plexus and confluence
occipital sinus
60
Which sinuses meet at the confluence sinuses
T: transverse
O: occipital
S: superior sagittal
S: straight
61
_____ sinus is located at the IOP
confluence
62
___sinus: runs along the superior edge of the petrous portion of the temporal bone
superior petrosal sinus
63
superior petrosal sinus runs along what bone
temporal
64
_______ sinus: drains the cavernous sinus into the IJV
inferior petrosal sinus
| receives cerebellar & labyrinthine
65
____sinus runs along the margin of the lesser wing of the sphenoid
sphenopartietal sinus
66
_____sinus : located on each side of the sella turcia
cavernous sinuses
67
What structures pass through the cavernous sinus
ICA
CN: 3,4,5 (V1,V2), 6
(oculomotor, trochlear, opthalmic, maxillary, abducens)
68
___sinus is located on the clivus
basilar sinus
69
basilar sinus connects the two _____ sinus and communicates with ____ plexus
inferior petrosal sinuses
internal vertebral venous plexus
70
cc an anurism of the ICA is going to cause high pressure on the arteries and veins in the cavernous sinus . This will then cause pressure on the _____N
opthalmic N
71
anterior meningeal artery is a branch of ____ artery
anterior ethmoidal artery
72
middle miningeal artery is a branch of the ____ artery
maxilary artery
73
The middle meningeal artery enters the cranial cavity throgh the _____foramen
spinosum
74
Posterior meingeal arteries are branches of which 3 arteries
ascending pharyngeal
occipital ( through mastoid branch)
vertebral
75
Middle meningeal vein exits through what foramen
foramen ovale and spinosum
76
The middle meningeal vein joins with the ____ plexus
pterygoid plexus
77
Anterior and posterior meningeal veins drain into ____
dural sinuses of the anterior and posterior cranium
78
The dura mater is sensitive to ____
pain
sensitive to stretch of the meninges = HA
79
Where are stretch receptors more abundant?
near the arteries and veins
80
cc ______: when CSF is drained during a spinal tap pressure is put on the dural sinuses and causes them to sag
spinal HA
81
What CN supplies sensory to the meninges
Trigeminal
82
What root level nerves supply the meninges
C1,C2,C3
83
What CN nerves supply sensory to the anterior cranial fossa
V1,V2,V3
84
What CN supplies sensory to the floor of the middle cranial fossa
V2,V3
85
The tentorial branch of V1 supplies what structures
tentorium cerebell and posterior part of the falx cerebri
86
What nerve gives off the tentorial N branch
V1: opthalmic
87
What N gives off the anterior meningeal branch?
V1: opthalmic
88
What does the anterior meningeal branch of V1 supply?
anterior portion of the falx cerebri
89
Nerve roots that supply the posterior cranial fossa
C1,2,3
run through the hypoglossa and vagus nerves
90
What nerves carry C1-3 N for the posterior cranial Fossa
hypoglossal
| vagus
