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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
Q

If a patient suffers from a R PCA stroke, which signs/symptoms will the patient most likely present with?

A

PCA; inf temporal lobe and occipital lobe
- left visual fields
- memory

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26
Q

Development of the Ventricles:

With the 4th ventricle: the ______ ________ plate with open and expand

A

posterior alar

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27
Q

With the development of the ventricles:

There will be invasion of ______ _____

Expansion of ______ _______

2 _______ and one ______ ventricle

A

blood veseels

choroid plexus

lateral; 3rd

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28
Q

Functions of the ventricles:

______ secretion and the ______ ______ barrier has no direct contact to brain tissue

A

CSF
blood brain

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29
Q

Functions of the Ventricles

  1. 2.
    3.
    Not much for _______
A

buoyance
insulation
waste diffusion
nutrition

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30
Q

Normal total amount of circulation of CSF is ______ mL

A

150

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31
Q

The circulation of CSF is produced by the ______ ______

A

choroid plexus

32
Q

CSF flows from the lateral ventricles through ________ _________ also called the _______ of ___________ and into the _______ ventricle

A

interventricular foramina
Foramen of Monroe
3rd

33
Q

CSF flow:

From the 3rd ventricle, CSF flows through the _________ ____________ and into the _____ ventricle also called the _______ of ________

A

cerebral aqueduct
4th
Foramen; Magendie

34
Q

CSF Flow:

From the 4th ventricle CSF flows into the __________ _________ surrounding the CNS

A

Subarachnoid space

35
Q

Last stages of CSF flow:
CSF eventually is passed through the _________ _________ and returned to the venous circulation in the _______ _______ sinus

A

arachnoid
granulations
superior
sagittal

36
Q

Whch horn is the largest of the lateral ventricles? and mostly located where?

A

anterior
frontal and limbic lobes

37
Q

The intraventricular foramen is also called?

A

Foramen of Monroe

38
Q

The lateral aperture of the ventricles is also called the _________ of ________

A

Formaen of Luschka

39
Q

The median aperture of the ventricles is also called the _________ of _________

40
Q

Label this

41
Q

_________ cistern contains the cerebral peduncle (descending tracts)

A

Interpenduncular

42
Q

The Interpenduncular cistern is ______ to the middle brain

43
Q

Quadrigeminal cistern contains what?

A

2 superior and 2 inferior colliculi

44
Q

Specialized Subarachnoid Spaces: Cistern

45
Q

An enlarged cistern indicates atrophy in what area?

A

brainstem/cerebellum

46
Q

Circulation of CSF (systole)

_________ to ________

From ________ to ________ subarachnoid space

A

Ventricles; subarachnoid space
rostral; caudal

47
Q

Circulation of CSF (diastole)

__________ ____________ to the ____________

__________ to __________ subarachnoid space

A

subarachnoid space
Ventricles
caudal; rostral

48
Q

Systole or Dystole citculation of CSF?

49
Q

Systole or Dystole citculation of CSF?

50
Q

What are the major dural venous sinuses located in the meningeal foldings?

A

Falx cerebri: SSS, ISS
Falx Cerebelli: occipital sinus
Tentorium Cerebelli: SS, TS

51
Q

Hyrdocephalus is what?

A

when CSF gets blocked

52
Q

Abnormal CSF pressure is is ___-_____ mmHg

Normal: __- ____ mmHg

A

7; 15

5, 20

53
Q

With hydrocephalus ______ function is compromised and causes increased _________ pressure

A

global
intercranial

54
Q

How do you fix hydrocephalus?

A

Ventriculoperitoneal shunt (abdominal)

55
Q

If the R side of the foramen of monroe is affected, the R ______ _______ will expand

A

lateral ventricle

56
Q

Normal Pressure Hydrocephalus (NPH) is what?

A

when the amount of CSF pressure is read as normal, but the ventricles show enlargement

57
Q

Which typical signs/symptoms will a patient with NHP present?

A

3 W’s (wacky, wet, wobbly)
Compromised Cognition
Incontience
Ataxia

58
Q

With NPH:

it is typically ____-________
there are tons of _______ ______
and the NPH _______: 3 W’s

A

age related
causes
triad

59
Q

With NPH, there is increased space of the _______ but decreased _______ _______ thickness

A

ventricles
cerebral cortex

60
Q

Which medical image is this and what condition is present?

61
Q

Drainage of CSF to the Dural Venous Sinuses

With ________ _______ and ________: endothethial cells swallow CSF and get out from the other side

A

Active transportation; secretion

62
Q

_________ __________ through fenestration along the endothelia

A

Passive Diffusion

63
Q

With passive diffusion, CSF can get out based on _______ pressure

64
Q

The _________ lining of sinus is the most inside layer of cells

A

endothelial

65
Q

Is dura mater thicker or thinner than the arachnoid?

66
Q

The arachnoid and arachnoid trabeculae attach on the ______ mater due to CSF

67
Q

Drainage of CSF to the Dural Venous Sinuses

68
Q

With an epidural hemorrhage, it touches our ________; ________ of the dura

A

sutures
periosteal

69
Q

With an epidural hemorrhage, the __________ ____________ causes disruption and results in a _______ hematoma

A

meningeal artery
convex

70
Q

The ________ is the weakest around the neurocranium and is involved with which hemorrhage?

A

pterion
epidural

71
Q

With an epidural hemorrage, more happens under the _______ part

72
Q

What is happening here?

A

Epidural hemorrhage

73
Q

Subdural hemorrhage

_________ hemorrhage
__________ ___________ disruption: and is _________

A

Intradural
bridging vein
concave

74
Q

Shaking baby syndrome is associated with a _________ hemorrhage

75
Q

What is happening here?

A

Subdural hemorrhage

76
Q

How does the CSF drain out of the ventricular system during the systole?

A

Out of the ventricles
from rotsral to caudal in the subarachnoid space

Neurobiology I (13 decks)

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