Neurovascular Anatomy

Question 1

What are the main blood vessels in the brain?

Answer 1

-Right and left internal carotid arteries
Right and left vertebral arteries
-The basilar artery
-Right and left anterior cerebral arteries
-Right and left middle cerebral arteries
-Right and left posterior cerebral arteries
-Anterior communicating artery
-Right and left posterior communicating arteries

Question 2

What is the prevalence of brain aneurysms?

Answer 2

2%

Question 3

What is the incidence of subarachnoid haemorrhage?

Answer 3

6.9 per 100,000 person-years

Question 4

How is the diagnosis of subarachnoid haemorrhage made?

Answer 4

• History ad examination
• Unenhanced CT
• Exclusion of absence of blood products in CSF

Question 5

What are common anatomical locations of aneurysms?

Answer 5

Most intracranial aneurysms arise from the branch points of the Circle of Willis

Question 6

How are ruptured intracranial aneurysms treated?

Answer 6

• Endovascular coil embolisation
• Surgical clipping
• Treating complications such as hydrocephalus, vasospastic infarcts and disability.

Question 7

What does the right middle cerebral artery supply?

Answer 7

Left body strength and left body sensation

Question 8

What does the left middle cerebral artery supply?

Answer 8

Right body strength and right body sensation and language

Question 9

What does the right posterior cerebral artery supply?

Answer 9

Perception of the left visual field

Question 10

What does the left posterior cerebral artery supply?

Answer 10

Perception of the right visual field

Question 11

What is the cerebellum supplied by?

Answer 11

Posterior inferior, anterior inferior and superior cerebellar arteries

Question 12

What do cerebellar strokes cause?

Answer 12

Ataxia and/or nystagmus

Question 13

Other than stroke, what is another cause of acute cerebellar syndrome?

Answer 13

Alcohol intoxication