Blood supply to brain

Question 1

Where does the vertebral artery branch from?

Answer 1

From the Right Subclavian and the left subclavian.

Question 2

What are the two main arteries that make up the circle of Willis?

Answer 2

Internal carotid artery
Vertebral artery

Question 3

What is the system of vessels that supply blood to the brain called ?

Answer 3

Circle of Willis

Question 4

Where do the internal carotid veins enter the skull ?

Answer 4

carotid canal

Question 5

What is A?

Answer 5

Anterior Cerebral artery

Question 6

What is B ?

Answer 6

Anterior Communicating artery

Question 7

What is C?

Answer 7

Ophthalmic artery

Question 8

What is D?

Answer 8

Anterior Choroidal Artery

Question 9

What is E?

Answer 9

Internal Carotid Artery

Question 10

What is F ?

Answer 10

Middle Cerebral artery

Question 11

What is G ?

Answer 11

Posterior Communicating artery

Question 12

What is H ?

Answer 12

Posterior Cerebral Artery

Question 13

What is I ?

Answer 13

Superior Cerebellar artery

Question 14

What is J ?

Answer 14

Pontine arteries

Question 15

What is K?

Answer 15

Basilar artery

Question 16

What is L ?

Answer 16

Anterior Inferior Cerebellar artery

Question 17

What is M ?

Answer 17

Vertebral artery

Question 18

What is N ?

Answer 18

Anterior Spinal Artery

Question 19

What is O ?

Answer 19

Posterior Inferior Cerebellar Artery

Question 20

Where do the vertebral arteries originate?

Answer 20

Subclavian arteries

Question 21

What arteries form the basilar artery?

Answer 21

vertebral artery

Question 22

Between which layers of the brain do the main arteries of the brain run?

Answer 22

Arachnoid and Pia

Question 23

Through which hole does the internal carotid artery enter the skull?

Answer 23

Carotid canal

Question 24

Through which hole does the vertebral artery enter the skull?

Answer 24

foramen magnum

Question 25

Which artery gives off branches that supply the pons?

Answer 25

Basilar artery

Question 26

The internal cartoid artery directly becomes which artery?

Answer 26

Middle cerebral

Question 27

What is the most superficial meningeal layer?

Answer 27

Dura Matter

Question 28

Where does the basilar artery supply ?

Answer 28

The pons

Question 29

What is the Venous Drainage of the brian ?

Answer 29

• No valves, meaning blood can go in any direction
• Superior and inferior sagittal sinus.
• Great cerebral vein
• All come together to form the confluence of sinuses.

Question 30

cavernous sinus can get venous blood from elsewhere, why is this important?

Answer 30

• If there’s an infection, e.g. in the nasal cavity, the blood is getting pretty close to the brain, and that’s a risk.
• However, it is protected by the blood-brain barrier.