Internal carotid artery

Question 1

Where does it originate

Answer 1

common carotid artery bifurcates into the internal and external carotid artery within the carotid triangle at the level of C4.

Question 2

Where does it pass

Answer 2

passes dorso-laterally giving no branches within the neck.

Question 3

Where does it supply

Answer 3

Enters cranium to give off branches and supplies the brain and eyeball.

Question 4

What are the branches?

Answer 4

Caritocotympanic (C2), Vidian (C2), Meningeal (C4), Inferior Hypophyseal (C4), Superior Hypophyseal (C6), Ophthalmic (C6), Posterior Communicating (C7), Anterior Choroidal (C7)

Terminal Branches: Anterior Cerebral (C7), Middle Cerebral Arteries (C7)

Question 5

Function

Answer 5

part of the anterior circulation, which is responsible for supplying the forebrain.

Question 6

When the two circulations of the brain anastomose

Answer 6

form an anatomical structure called the circle of Willis.