the carotid arteries
as insufficient oxygenated blood supply to brain
They supply the brain (and structures of the head, as well) with oxygenated blood.
The brain is supplied blood from the left and right carotid arteries. If supply from one of the carotid arteries is cut off, the other can still supply enough oxygenated blood to keep the brain alive and functioning.
the artery(oxygenated blood) and vein(de-oxygenated blood)
Almost none. It does control its own flow, and it will speed the heart in anticipation of need, but that does not effect the actual flow of blood.
The lingual artery is the branch of the external carotid artery that supplies the tongue with oxygenated blood.
The blood vessels around the brain help supply energy for your brain
It pumps the oxygenated blood and sends it to your muscles and brain.
It pumps blood to and from your lungs to become oxygenated, and then pumps that oxygenated blood to your brain and the rest of your body for your cells to receive oxygen. Apparently it isn't pumping as much blood to your brain as it does most people, though.
When the blood supply to a portion of the brain is blocked this causes a stroke.
When the blood supply to a portion of the brain is blocked this causes a stroke.
When the blood supply to a portion of the brain is blocked this causes a stroke.