20.10a Internal Carotid Artery
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11 Terms
What branches arise from the internal carotid artery after entering the skull?
Anterior cerebral arteries, middle cerebral arteries, and the ophthalmic artery.
What do the anterior and middle cerebral arteries supply?
The brain.
What does the ophthalmic artery supply?
The eyes and surrounding structures.
Where do vertebral arteries originate?
From the subclavian arteries.
Where do vertebral arteries travel?
Through the transverse foramina of cervical vertebrae.
How do vertebral arteries enter the skull?
Through the foramen magnum.
What happens to the vertebral arteries inside the skull?
They merge to form the basilar artery.
What is the basilar artery?
An unpaired artery formed by the merging of vertebral arteries.
What does the basilar artery divide into?
Posterior cerebral arteries.
What do the posterior cerebral arteries supply?
The posterior part of the cerebrum.
Why are the internal carotid and vertebral arteries important?
They provide major blood supply to the brain.
