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The brain is supplied by 4 trunk vessels or great vessels
1. Right common carotid
2. Left commonc arotid
3. Right vertebral arteries
4. Left vertebral arteries
What part of the brain does the left & right common carotid arteries supply?
Anterior or posterior
What part of the brain does the left & right vertebral arteries supply?
Posterior or anterior
Posterior circulation pg 50 v-3
The 1st branch of the aortic arch is called
Innominate or brachiocephalic pg50 v-3
The first branch of the aortic arch is the Innominate aka brachiocephalic bifercates into
Right common carotid and right subclavian artery
Second branch of aortic is the
Left common carotid followed by the left subclavian artery
1.Each common carotid artery passes.....and ......
Than divides into......and.........
2. Divides into internal and external carotid arteries
Superiorly and laterly along side the trachea and larynx to the level C4
External carotid arteries contribute blood supply to the
Extracranial and extraaxial circulation
The internal carotid artery enters the crainium through
The carotid foramen of the temporal bone
And bifercates into the anterior and middle cerebral arteries
They branch and rebranch to supply anterior circulation of therespective hemispher of the brain
Vertebral arteries acend through the
Cervical transverse foramin and pass medially to enter through the foramin magnum
Vertebral arteries unit to form....
The Basilar artery....
Basilar artery , follows a short superior course along the
Posterior surface of the right and left posterior cerebral arteries
Vertebral and Basilar arteries supply blood to
The posterior fossa (Cerebellum)
The anterior and posterior cerbral arteries are connected to by ............at the level of............
To and from......
Level of theMidbrain
The circle of Willis
RT 275 circulatory