The anterior and posterior cerebral arteries are both branches of the internal carotid artery
I believe it is the internal carotid arteries.
I beileve (Looking in my Hole's anatomy & physiology text) that the anterior cerebral branches off the middle cerebral, which branches from the posterior communicating artery. Or it circles around to the anterior communicating artery. They all form the cerebral arterial circle.
Basilar Artery
Aorta
AORTA
Just outside the Left ventricle, in the aortic cusp.
Just outside the Left ventricle, in the aortic cusp.
They are the first vessel off the aorta. The originate in the aortic cusp.
Coronary arteries branch from the aorta and supply the heart muscle.
The only branches of the ascending aorta are the two coronary arteries which supply the heart; they arise near the commencement of the aorta from the aortic sinuses which are opposite the aortic valve. The Right and the Left coronary arteries
Most familial cerebral cavernous malformations are present at birth (congenital). They are thought to arise between three and eight weeks of gestation, although the exact mechanism of CCM formation is not understood.