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Neurology > Ventricular System > Flashcards

Ventricular System Flashcards

1
Q

Type of ventricles

A

2 lateral ventricles
3rd ventricle
4th ventricle

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2
Q

Structure producing csf

A

Choroid plexus

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3
Q

Liquid in ventricles

A

CSF

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4
Q

Embryologie origin of ventricle

A

Neural canal of neural tube

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5
Q

How are lateral and third ventricle formed

A

Neural canal dilation in prosencephalon

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6
Q

Origin of cerebral aqueduct

A

Cavity of mesencephalon

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7
Q

Origin of fourth ventricle

A

Neural canal dilatation in rhombencephalon

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8
Q

Choroid plexus origin

A

Tuft of capillaries invaginate roofs of prosencephalon and rhombencephalon

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9
Q

Largest ventricle

A

Lateral ventricles

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10
Q

Divisions of lateral ventricles

A

Body

3 horns

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11
Q

Connection of lateral ventricle to 3rd ventricle

A

Interventricular foramina

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12
Q

Part of lateral ventricle with choroid plexu s

A

Body

Temporal horn

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13
Q

Connection between thrid and 4th ventricle

A

Cerebral aqueduct

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14
Q

Location of fourth ventricle

A

Posterior to pons and upper medulla oblongata

Anterior inferior to cerebellum

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15
Q

Floor of fourth ventricle

A

Rhomboid fossa

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16
Q

Connection between fourth ventricle and subarachnoid space

A

Lateral foramen of luschka

Foramen of magendie ( midline )

17
Q

Csf flow factors

A

Hydrostatic pressure
Arterial pulsation of large arteries
Directional beating of ependymal cilia

18
Q

Csf volume in communicating system

A

150 ml

19
Q

Production rate of csf

A

20ml/h

20
Q

Amount of csf produced and absorbed daily

A

400-500ml

21
Q

Normal pressure in CSF

A

5-15 mmHg

22
Q

Functions of CSF

A

Support brain during evolution
Protection against external trauma
Remove metabolites from neuronal and glial cell activity
Transport of active substance like hormones and neuropeptides

23
Q

3 main barriers of BBB

A

Vascular endothelial barrier
Blood-CSf barrier
Subarachnoid barrier -

24
Q

BBB functions

A

Prevent entry of harmful substances into CNS
Maintain Ion and volume regulation
Maintain Metabolic and immunologic function

25
Q

Intracranial pressure components

A

Brain parenchyma
Intracranial CSF
Cerebral blood volume

26
Q

Condition in which there is increased ICP

A

Neoplasia
Hemorrhage
Inflammation
Hydrocephalus

27
Q

Hydrocephalus types

A

Communicating

Non communicating

28
Q

Congenital hydrocephalus

A

Dandy walker syndrome
Chiari malformation
Congenital brain tumors (choroid plexus papillloma )
Hydrancephaly

29
Q

Hydrocephalus presentation in infants

A 
Irritability 
Lethargy 
Poor feeding 
Vomiting 
Failure to thrive
30
Q

Adults hydrocephalus presentation

A

Headache
Vomiting
Diplopia
Papilledema

31
Q

Management of hydrocephalus

A 
Conservative 
Surgical (shunting and endoscopic 3rd ventriculostomy)

Neurology (31 decks)

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