Stroke Flashcards
branches of circle of willis
anterior x2 anterior communicating x2 middle x2 posterior communicating x2 posterior x2 basilar
where does ICA originate
common carotid - bifurcates at C4
what does ICA travel to brain in
carotid sheath
what foramen does ICA pass through to enter cranial cavity
carotid canal
where do vertebral arteries originate
subclavial arteries
what do vertebral arteries join to make
basilar artery
what foramen do vertebral arteries pass through to enter cranial cavity
foramen magnum
what does anterior cerebral artery supply
anteromedial brain
what does middle cerebral artery supply
lateral brain
what does posterior cerebral artery supply
medial and lateral posterior brain
contralateral weakness and sensory loss in lover limbs
face spared
anterior cerebral artery
contralateral weakness over upper limbs
face involvement
middle meningeal artery
strokes in cerebral hemispheres cause problems on ipsilateral/contralateral side
contralateral
strokes in cerebellum cause problems inf ipsilateral/contralateral side
ipsilateral
weber’s syndrome
stroke of branches of posterior cerebral arteries supplying midbrain
clinical features of weber’s
ipsilateral CNIII palsy
contralateral weakness of upper and lower extremities
Wallenberg syndrome affected branch
posterior inferior cerebellar artery
clinical manifestations of Wallenberg syndrome
ipsilateral face pain and temp loss
contralateral limb/torso pain and temp loss
ataxia and nystagmus
lateral pontine syndrome affected branch
anterior inferior cerebellar artery
clinical manifestation of lateral pontine syndrome
ipsilateral face paralysis
deafness
what are lacunar infarcts
affects vessels around basal ganglia
clinical manifestations of lacunar infarcts
pure sensory stroke of arm, face, leg or all three
risk of ataxic hemiparesis
what is total anterior infarct
infarcts of middle and anterior cerebral arteries
clinical requirements of total anterior circulation infarct
motor deficit
speech deficit
homonymous hemianopia
