Brain Blood Supply Flashcards
Answer?
Which two arteries contribute to the blood supply of the brain?
Vertebral Artery
Internal Carotid Artery
What artery is the Vertebral A. a branch of?
Subclavian Artery
How does the Vertebral A. enter the skull?
Passes through the Foramen Magnum
Via Transverse Processes C1-C6
Which artery does the Internal Carotid A. arise from?
Common Carotid Artery
How does the Internal Carotid A. enter the skull?
Carotid Canals
Which branches arise from the Vertebral Artery before they join to form the Basilar Artery?
Anterior Spinal Arteries
Posterior Inferior Cerebellar A.
What is the course of the Basilar Artery?
Basilar groove over the ventral surface of the Pons
What are the names of some of the smaller branches given off by the Basilar Artery?
Pontine Arteries
Labyrinthe Artery (Supplies the inner ear)
Arterial supply to the cerebellum?
Posterior Inferior Cerebellar A.
Anterior Inferior Cerebellar A.
Superior Cerebellar A.
Arterial Supply to the Cerebrum?
Posterior Cerebral A.
Middle Cerebral A.
Anterior Cerebral A.
What does the Basilar artery divide into?
The two Posterior Cerebral Arteries
What does the Posterior Cerebral Artery Supply?
Occipital Lobe
What is the course of the Middle Cerebral A. after arising from the Internal Carotid A?
Courses laterally between the lateral and temporal lobes
What does the Middle Cerebral Artery Supply?
Lateral Frontal, Temporal, and Parietal lobes
What connects the Posterior and Middle Cerebral arteries?
Posterior Communicating Artery
