Neuroanatomy, cerebral aneurysm and stroke Flashcards

1
Q

what are the main arteries in the brain

A

R and L - internal carotid

R and L - vertebral arteries

Basilar arteries

R and L - anterior cerebral arteries

R and L - middle cerebral arteries

R and L posterioir cerebral arteries

Anterior communicating artery

R and L posterior communicating artery

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2
Q

what is an aneurysm

A

an excessive localised swelling of the wall of an artery

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3
Q

what is the prevalence of aneurysms

A

2%

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4
Q

what is a subarachnoid haemorrhage

A

bleeding into the subarachnoid space - the area between the arachnoid membrane and the pia mater

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5
Q

how is a subarachnoid haemorrhage diagnosed

A

history and examination
unenhanced CT

exclusion by absence of blood products in the CSF (lumbar puncture)

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6
Q

what are common locations for aneurysms

A

intracranial aneurysms -from the branch points of the circle of willis

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7
Q

what is the treatment of a ruptured intracranial aneurysm

A

endovascular coil embolisation

surgical clippings

treat complications - e.g. hydrocephalus, vasospastic infarcts and disability

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8
Q

what does the right middle cerebral artery supply

A

left body strength

left body sensation

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9
Q

what does the left middle cerebral artery supply

A

right body strength

right body sensation and language

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10
Q

what does the right posterior cerebral artery supply

A

perception of left visual field

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11
Q

what does the left posterior cerebral artery supply

A

perception of the right visual field

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12
Q

what arteries supply the cerebellum

A

posterior inferior, anterior inferior, superior cerebellar arteries

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13
Q

what can cerebellar stroke cause

A

ataxia and or/nystagmus

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14
Q

what is another cause of acute cerebellar ataxia

A

alcohol intoxication

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