Blood Supply to the Brain

Hypoxia

reduced oxygen, like in high altitudes

Anoxia

absence of an oxygen supply, like when drowning or in a heart attack

Internal Carotid System

delivers blood to frontal and temporal lobes, going through internal carotid arteries to the forebrain (front part of the brain)

Vertebrobasilar System

supplies blood to the back of the brain, blood goes to the brainstem, cerebellum, and occipital lobes, basilar arty branches into posterior cerebral arteries, can cause vision and hearing problems and agnosias

Circle of Willis

loop of blood vessels, connects anterior and posterior cerebral arteries, helps prevent strokes

Anterior Cerebral Artery

send blood to anterior and medial parts of the brain

Middle Cerebral Artery

send blood to the entire lateral surface of the brain, part of the Circle of Willis, most affected blood vessel in the brain when something happens