Arteries of the Head and Neck

What arteries supply the head and neck

common carotid arteries

Three branches from each subclavian artery : the vertebral arteries, the thyrocervical trunks, and the costocervical trunks

What do each common carotid artery divide to

Two major arteries; the internal and external carotid arteries

What supplies most of the tissues of the head except for the brain and orbit

The external carotid arteries

What supplies the orbits and 80% of the cerebrum

internal carotid artery

Where do vertebral arteries enter the head

foramen magnum

What is the cerebral arterial circle

Circle of Willis; encircles the pituitary gland and optic chiasm and unites the brains anterior and posterior blood supplies