It is the branch of common carotid artery.
ICA divide into four parts (From neck to head)-
• Cervical part
• Petrous part
• Cavernous part
• 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-
• Anterior cerebral artery (ACA)
• Middle cerebral artery (MCA)
• Posterior communicating artery
• Ophthalmic artery– Supply to the eye ball.
• Anterior choroidal artery– Supply to the choroidal plexus.