Arteries brain (38-47)

Question 1

Which parts/areas of the brain are supplied by the anterior cerebral artery?;

Answer 1

Frontal lobe and anterior paritel lobe

Question 2

What is the functional deficit in an anterior cerebral artery stroke?;

Answer 2

Contralateral hemiparesis and hemisensory loss of the lower extremity. Loss of executive function.

Question 3

Which parts/areas of the brain are supplied by the middle cerebral arterty?;

Answer 3

Temporal and parietal lobe including broca & wernikes areas (in dominant sphere)

Question 4

What is the functional deficit in a middle cerebral artery stroke?;

Answer 4

Contralateral (unilateral) weakness in upper limb and face. Contralateral homoynsus hermianpia. Speech deficits if dominant hemisphere affected. Neglect is non-dominant hemisphere affected.

Question 5

Which parts/areas of the brain are supplied by the posterior cerebral artery?;

Answer 5

Occipital lobe & posterior part of thalmus, midbrain

Question 6

What is the functional deficit in a posterior cerebral artery stroke?;

Answer 6

Visual disturbance, contralateral homonysus hemianopia, macular sparring. Occulomotr & trochlear nerves may also be affected as nerves from midbrain.

Question 7

Which parts/areas of the brain are supplied by the vertebral artery?;

Answer 7

Brainstem (pons & medulla), upper spinal cord, cerebellum

Question 8

What is the functional defecit in a stroke affecteing the vertebral artery?;

Answer 8

CN 6-12, vagus nerve most commonly affected - dysphonia, dusphagia, dysarthia - poor prognosis.

Question 9

What is the aetiology of a subarachnoid haemorrhage;

Answer 9

Rupturped berry aneurysm (most commonly - 85%), can get spontaneous SAH or traumatic but is uncommon

Question 10

Name three key signs and symptoms in a patient with a subarachnoid haemorrhage?;

Answer 10

Sudden “thundercalp” headache, photophobia, convulsions, N&V, papillodema