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Neurobiology I > Lecture 7: Ventricular and Dural Sinuses > Flashcards

Lecture 7: Ventricular and Dural Sinuses Flashcards

1
Q

What are the 4 types of hemorrhage in the in the neurocranium that can comromise brain functions?

A

Intraparenchymal
Subarachnoid
Epidural
Subdural

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2
Q

Meninges

A
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3
Q

Which part of the meninges is spider web-like?

A

Arachnoid

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4
Q

Which mater is the most outer layer of the brain?

A

Pia Mater

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5
Q

The Epidural space is between the _____ and _______

A

bone
periosteal

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6
Q

The Subdural space is between the _______ ______ and _______

A

meningeal dura
arachnoid

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7
Q

The Subarachnoid space is between the _________ and _______ mater which is filled by what?

A

arachnoid
pia
CSF

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8
Q

Meninges and Related Spaces

A
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9
Q

Folding of the Meningeal Dura:

Sagittal:
1.
2.

A

Falx Cerebri
Falx Cerebelli

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10
Q

Folding of the Meningeal Dura:

Transverse
1.
2.

A

Tentorium Cerebelli
Diaphragma Sellae and Sella Turcica

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11
Q

The Falx Cerebri is located in the _______ ______ and seperates what two structures?

A

longitudinal
cerebral cortex

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12
Q

The Falx Cerebelli is located in the groove ________ to the _________

A

posterior
cerebellum

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13
Q

The Tentorium Cerebelli is located in the _________ _______ and covers the ________

A

transverse fissure
cerebellum

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14
Q

The Diaphragma sellae seals the ______ _______

A

sella turcica

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15
Q

The Diaphragma sellae and sella turcica seperates the ______ ________ from the _______

A

pituitary gland
hypothalamus

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16
Q

The Inferior Sagittal Sinus, Great Cerebral Vein, Straight Sinus = ______ of ______

A

Confluence
Sinuses

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17
Q

Folding of the Meningeal Dura

A
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18
Q

Dural Venous Drainage Sinus System

A
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19
Q

Dural Venous Drainage Sinus System

A
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20
Q

Spreading infections to the brain:

Dangerous triangle is when _____ blood flows into the _______ _______

A

venous
cavernous sinus

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21
Q

The sigmoid sinus gets out from the _____ _______

A

jugular foramen

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22
Q

The straight sinus is located in the ______ _________

A

tentorium cerebelli

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23
Q

Somatosensory Innervation of the Dura Mater:

Posterior Cranial Fossa Dura ____/_____

A

C2
C3

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24
Q

The area where a craniotomy is performed is called…?

A

the area of sparse innervation

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25
If a patient suffers from a R PCA stroke, which signs/symptoms will the patient most likely present with?
PCA; inf temporal lobe and occipital lobe - left visual fields - memory
26
Development of the Ventricles: With the 4th ventricle: the ______ ________ plate with open and expand
posterior alar
27
With the development of the ventricles: There will be invasion of ______ _____ Expansion of ______ _______ 2 _______ and one ______ ventricle
blood veseels choroid plexus lateral; 3rd
28
Functions of the ventricles: ______ secretion and the ______ ______ barrier has no direct contact to brain tissue
CSF blood brain
29
Functions of the Ventricles 1. 2. 3. Not much for _______
buoyance insulation waste diffusion nutrition
30
Normal total amount of circulation of CSF is ______ mL
150
31
The circulation of CSF is produced by the ______ ______
choroid plexus
32
CSF flows from the lateral ventricles through ________ _________ also called the _______ of ___________ and into the _______ ventricle
interventricular foramina Foramen of Monroe 3rd
33
CSF flow: From the 3rd ventricle, CSF flows through the _________ ____________ and into the _____ ventricle also called the _______ of ________
cerebral aqueduct 4th Foramen; Magendie
34
CSF Flow: From the 4th ventricle CSF flows into the __________ _________ surrounding the CNS
Subarachnoid space
35
Last stages of CSF flow: CSF eventually is passed through the _________ _________ and returned to the venous circulation in the _______ _______ sinus
arachnoid granulations superior sagittal
36
Whch horn is the largest of the lateral ventricles? and mostly located where?
anterior frontal and limbic lobes
37
The intraventricular foramen is also called?
Foramen of Monroe
38
The lateral aperture of the ventricles is also called the _________ of ________
Formaen of Luschka
39
The median aperture of the ventricles is also called the _________ of _________
Magendie
40
Label this
41
_________ cistern contains the cerebral peduncle (descending tracts)
Interpenduncular
42
The Interpenduncular cistern is ______ to the middle brain
anterior
43
Quadrigeminal cistern contains what?
2 superior and 2 inferior colliculi
44
Specialized Subarachnoid Spaces: Cistern
45
An enlarged cistern indicates atrophy in what area?
brainstem/cerebellum
46
Circulation of CSF (systole) _________ to ________ From ________ to ________ subarachnoid space
Ventricles; subarachnoid space rostral; caudal
47
Circulation of CSF (diastole) __________ ____________ to the ____________ __________ to __________ subarachnoid space
subarachnoid space Ventricles caudal; rostral
48
Systole or Dystole citculation of CSF?
Systole
49
Systole or Dystole citculation of CSF?
50
What are the major dural venous sinuses located in the meningeal foldings?
Falx cerebri: SSS, ISS Falx Cerebelli: occipital sinus Tentorium Cerebelli: SS, TS
51
Hyrdocephalus is what?
when CSF gets blocked
52
Abnormal CSF pressure is is ___-_____ mmHg Normal: __- ____ mmHg
7; 15 5, 20
53
With hydrocephalus ______ function is compromised and causes increased _________ pressure
global intercranial
54
How do you fix hydrocephalus?
Ventriculoperitoneal shunt (abdominal)
55
If the R side of the foramen of monroe is affected, the R ______ _______ will expand
lateral ventricle
56
Normal Pressure Hydrocephalus (NPH) is what?
when the amount of CSF pressure is read as normal, but the ventricles show enlargement
57
Which typical signs/symptoms will a patient with NHP present?
3 W's (wacky, wet, wobbly) Compromised Cognition Incontience Ataxia
58
With NPH: it is typically ____-________ there are tons of _______ ______ and the NPH _______: 3 W's
age related causes triad
59
With NPH, there is increased space of the _______ but decreased _______ _______ thickness
ventricles cerebral cortex
60
Which medical image is this and what condition is present?
T1 MRI NPH
61
Drainage of CSF to the Dural Venous Sinuses With ________ _______ and ________: endothethial cells swallow CSF and get out from the other side
Active transportation; secretion
62
_________ __________ through fenestration along the endothelia
Passive Diffusion
63
With passive diffusion, CSF can get out based on _______ pressure
diastole
64
The _________ lining of sinus is the most inside layer of cells
endothelial
65
Is dura mater thicker or thinner than the arachnoid?
thicker
66
The arachnoid and arachnoid trabeculae attach on the ______ mater due to CSF
pia
67
Drainage of CSF to the Dural Venous Sinuses
68
With an epidural hemorrhage, it touches our ________; ________ of the dura
sutures periosteal
69
With an epidural hemorrhage, the __________ ____________ causes disruption and results in a _______ hematoma
meningeal artery convex
70
The ________ is the weakest around the neurocranium and is involved with which hemorrhage?
pterion epidural
71
With an epidural hemorrage, more happens under the _______ part
calvaria
72
What is happening here?
Epidural hemorrhage
73
Subdural hemorrhage _________ hemorrhage __________ ___________ disruption: and is _________
Intradural bridging vein concave
74
Shaking baby syndrome is associated with a _________ hemorrhage
subdural
75
What is happening here?
Subdural hemorrhage
76
How does the CSF drain out of the ventricular system during the systole?
Out of the ventricles from rotsral to caudal in the subarachnoid space

Neurobiology I (13 decks)

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