Internal carotid artery

1. It is the branch of common carotid artery.


2. ICA divide into four parts (From neck to head)-

a. Cervical part

b. Petrous part 

c. Cavernous part

d. Cerebral part


In the blood supply of brain we study only 4th / cerebral part and it’s branches.


NOTE: Both vertebral, and Internal carotid artery are divided into four parts (from neck to head).


Branches of cerebral part of ICA-

1. Anterior cerebral artery (ACA)

2. Middle cerebral artery (MCA)
3. Posterior communicating artery
4. Ophthalmic artery– Supply to the eye ball.
5. Anterior choroidal artery– Supply to the choroidal plexus.

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