Cerebral Vasculature

Question 1

What % of the body weight is made up by the brain?

Answer 1

2%

Question 2

What % of cardiac output does the brain use?

Answer 2

10-20%

Question 3

What % of body O2 consumption goes to the brain?

Answer 3

20%

Question 4

What % of liver glucose does the brain use?

Answer 4

66%

Question 5

Name the arteries supplying the brain

Answer 5

Question 6

Name the arteries in Circle of Willis

Answer 6

Question 7

Describe the path of venous drainage in the brain

Answer 7

Cerebral veins → Venous sinuses in dura mater → Internal jugular vein

Question 8

Identify the dural venous sinuses

Answer 8

Question 9

What are the types of intracranial hemorrhage?

Answer 9

1. Extradural
2. Subdural
3. Subarachnoid
4. Intracerebral

Question 10

What is the main cause of extradural haemorrhage?

Answer 10

Trauma

Question 11

What is the main cause of subdural haemorrhage?

Answer 11

Trauma

Question 12

What is the main cause of subarachnoid haemorrhage?

Answer 12

Ruptured aneurysms

Question 13

What is the main cause of intracerebral haemorrhage?

Answer 13

Hypertension

Question 14

Identify the types of haemorrhage marked in yellow, purple, blue and red

Answer 14

Red: Extradural
Blue: Subdural
Purple: Subarachnoid
Yellow: Intracerebral

Question 15

What is the difference between clinical effects of extradural and subdural haemorrhage?

Answer 15

Extradural: immediate clinical effects (arterial, high pressure)
Subdural: delayed clinical effects (venous, lower pressure)