Blood Supply

Question 1

Anterior Cerebral Artery

Answer 1

• medial surface of hemisphere
• leg/foot area of motor AND sensory cortex

LESION: contralateral paralysis of LE and sensation

Question 2

Middle Cerebral Artery

Answer 2

• Broca’s and Wernicke’s
• lateral motor and sensory cortex (face and upper extremities)

LESION: contralateral loss of motor and sensation of UE and face, aphasia if left hemisphere (broca’s and wernicke’s), hemineglect is right hemisphere

Question 3

Posterior Cerebral Artery

Answer 3

• midbrain, thalamus, occipital lobe, CN III, IV

LESION: contralateral hemianopia with macular sparing

Question 4

Lateral Striate Arteries

Answer 4

• arteries of stroke (arise from MCA), secondary to out of control HTN
• internal capsule, caudate nucleus, putamen, globus pallidus

LESION: contralateral hemiparesis/hemiplegia

Question 5

Acomm

Answer 5

• most common site of berry (sacular aneurysm)
• impingement on cranial nerves
• visual field defects

Question 6

Pcomm

Answer 6

• common site of berry aneurysm
• CNIII palsy - eye is down and out, ptosis, pupil dilation