* Identify brachiocephalic trunk branches: common carotid and subclavian arteries.
* List subclavian artery branches.
* Describe common carotid artery bifurcation into external and internal carotid arteries.
* Differentiate external carotid artery (skull, dura) from internal carotid artery (brain, eyes, forehead).
* Trace the course of arteries of the brain, including internal carotid artery.
* Circle of Willis significance in cerebral circulation.