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internal carotid artery
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internal carotid artery

anatomy
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Quick Summary

The internal carotid artery is one of two major arteries supplying blood to the head and neck. It originates from the common carotid artery, which itself branches from the aorta. The internal carotid artery travels up into the skull, supplying blood to the brain, eyes, and other internal parts of the head. It branches into the anterior and middle cerebral arteries, which are crucial for brain function. Unlike the external carotid artery, which supplies blood to the face and external head structures, the internal carotid artery lies deeper and has fewer large collateral branches as it directly serves the brain.12

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