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22 spring: neurology > test 1: lab 1 > Flashcards

test 1: lab 1 Flashcards

1
Q

three meninges

A

dura mater
arachnoid
pia mater

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2
Q

what is in subarchnoid space

A

vessels and CSF

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3
Q

two layers of dura mater

A

periosteal layer

meningeal layer

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4
Q

superior sagittal sinus in a ___ in the dura mater

A

opening in the dura mater

periosteal layer and meningeal layer seperate

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5
Q

___ is an extension of the dura mater into the sagittal fissure

A

falx cerebri

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6
Q

subarachnoid cistern

A

where the arachnoid and pia are widely separated

the cisterna magna (cerebellomedullary cistern) is where they are most widely separated

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7
Q

brain receives blood from two sources

A

internal carotid artery

basilar artery

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8
Q

rete mirabile

A

(arterioles)

sit in the cavernous sinus

counter-current heart exchange between blood in rete and bool venous blood

protects brain from overheating

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9
Q

counter-current heart exchange in the brain is by

A

rete mirabile

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10
Q

____ are CSF filled caverns and canals inside the brain

A

ventricles

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11
Q

where is CSF produced?

A

in the choroid plexus in the ventricles

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12
Q

why have CSF?

A

protects brain – cushions it

Removes harmful metabolites

Conduit for hypothalamic peptide hormones

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13
Q

flow of CSF

A

lateral ventricles

interventricular foramen → foramen of monro

3rd ventricle

cerebral aqueduct of sylvius

4th ventricle

lateral recess → brain medial recess →spinal cord

subarachnoid space

arachnoid granulations

venous sinus

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14
Q

CSF is reabsorbed in ___ and granulations into venous
sinuses

A

arachnoid villi

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15
Q

what cells produce CSF

A

specialized ependymal cells surrounding capillaries in ventricles

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16
Q

which ventricle is associated with the telencephalon

A

lateral

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17
Q

which ventricle is associated with the diencephalon

A
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18
Q

which ventricular space is associated with the mesencephalon?

A
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19
Q

which ventricle is associated with the metencephalon

A

fourth

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20
Q

which ventricle is associated with the myelencephalon?

A
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21
Q

central canal is associated with the ___

A

spinal cord

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22
Q

2 layer of meninges

A

arachnoid

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23
Q

where CSF is reabsorbed into the venous system, in the dorsal sagittal sinus

A

arachnoid villi

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24
Q

arachnoid villi

A

where CSF is reabsorbed into the venous system, in the dorsal sagittal sinus

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25
basilar artery
formed by the joining of the vertebral arteries- runs along the midline of the ventral surface of the medulla and pons and then joins the circle of willis
26
**basilar artery:** formed by the joining of the vertebral arteries- runs along the midline of the ventral surface of the medulla and pons and then joins the circle of willis
27
carotid rete (rete mirabile)
specialized structure for heat exchange, within the cavernous sinus, the many parallel arteroles proved a high surface area for heat exchange, the faster the respiratory rate the cooler the venous blood becomes, then form into the internal carotid artery and enter the circle of willis
28
caudal cerebellar artery- supplies the caudal portion of the cerebellum
29
**caudal cerebral artery**- comes form the caudal communicating artery at the level of the caudal aspect of the pituitary. supplies the medial part of the caudal half of the cerebral hemisphere, it also supplies the diencephalon and rostral mesencephalon
30
what artery supplies the black?
caudal cerebral artery
31
caudal communicating arteries
32
cavernous sinus
floor of the middle cranial fossa, where pituitary would be- where rete mirabile would be
33
34
**cerebral aqueduct** - connects 3rd to 4th ventricle, found in the mesencephalon
35
cerebral aqueduct - connects the 3rd and 4th ventricle- found in the mesencephalon
36
circle of willis
cerebral arterial circle
37
\_\_\_ make CSF and are found \_\_\_
choroid plexus in the lateral, 3rd and 4th ventricles
38
**cisterna magna** (cerebellomedullary cistern) - large expansion of the subarachnoid space above the 4th ventricle, common site for CSF tap.CSF from the 4th ventricles flows through the lateral apertures of the 4th ventricle to get to the cisterna magna
39
cisterna magna
cisterna magna (cerebellomedullary cistern) - large expansion of the subarachnoid space above the 4th ventricle, common site for CSF tap.CSF from the 4th ventricles flows through the lateral apertures of the 4th ventricle to get to the cisterna magna
40
41
**dorsal sagittal sinus** - contains arachnoid villi that absorb CSF, runs within the falx cerebri and supplies blood to the transverse sinus
42
outer most layer of the meninges
dura mater
43
ependyma
cells that line the ventricles- some will specialize into CSF producing cells- choroid plexus
44
\_\_\_ are cells that line the ventricles
ependyma
45
\_\_\_ is an extension of the dura matter down into the sagittal fissure(longitudinal fissure), where the dorsal sagittal sinus is
falx cerebri
46
4th ventricle in the hindbrain
47
fourth ventricle in the hindbrain
48
internal carotid artery
49
\_\_\_ connects the lateral and 3rd ventricle
interventricular foramen
50
lateral aperture of fourth ventricle- extension of the 4th ventricle that leads into the cisterna magna and allows CSF around the brain in the subarachnoid space
51
lateral ventricles [LV]- within the telencephalon
52
pia mater and arachnoid =
leptomeninges
53
midline fissure is the \_\_\_
longitudinal fissure | (sagittal fissure)
54
three layers of meninges
dura mater arachnoid pia mater
55
middle cerebral artery- supplies most of the cerebrum
56
what supplies orange?
middle cerebral artery
57
optic chiasm- where CN2 cross
58
inner most layer of meninges that extend into the sulci
pia mater
59
**rostral cerebellar artery**- supplies the caudal midbrain and the rostral half of the cerebellum
60
**rostral cerebral artery**- comes off the circle of willis and up through the longitudinal fissure to supply blood to the medial portion of the rostral half of the cerebrum
61
what supplies the green area
rostral cerebral artery
62
subarachnoid space
space between the pia mater and the arachnoid that is filled with CSF and vessels
63
3rd ventricle - in the diencephalon
64
red?
**transverse sinus**- carry venous blood from the dorsal sagittal sinus to the cavernous sinus
65
**ventral spinal artery-** receives blood from the vertebral arteries that enter the spinal canal through successive vertebral foramina
66
carry blood to the ventral spinal artery and up to the basilar artery to the circle of willis
vertebral arteries
67
pituitary
68
basilar artery
69
carotid rete
70
71
middle cerebral artery
72
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78
3rd ventricle

22 spring: neurology (26 decks)

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