Flashcards in Lecture 12 Deck (15):
What is the main artery that feeds anterior and posterior cranial circulation?
Anterior: internal carotid artery
Posterior: Vertebral artery
What is the order of the anterior circulation? (7 vessels)
I O P A M A L - noooo bells!
1 Internal carotid artery
- 2 Opthalmic artery
- 3 Posterior communicating artery
- 4 Anterior choroidal artery
5 Anterior cerebral artery (moving up and out in the C shape of the brain)
6 Middle cerebral artery
- 7 Lenticulostriate
What is the order of the posterior circulation? (7 vessels)
V I S B I C C - mostly bells!
1 Vertebral artery
- 2 Post Inf CereBELLar A (post)
- 3 Anterior spinal artery
4 Basilar artery
- 5 Ant Inf CereBELLar A (posterior because comes off going backwards, but anterior in name because another one coming from the back)
- 6 Superior cereBELLar artery
- 7 Posterior cereBRAL artery
Is posterior circulation mostly cerebral or cerebellar? What is the exception?
- Superior cerebellar artery
Exception = posterior cerebral artery
Is the anterior circulation mostly cerebral or cerebellar?
Anterior cerebral artery
Middle cerebral artery
Where does the middle cerebral artery run? What does it supply?
Runs in lateral sulcus
Supplies lateral sides of hemisphere
Where does the anterior cerebral artery run? What does it supply?
Runs in the medial longitudinal fissure (follows C shape of brain)
Supplies frontal lobes
What does the anterior choroidal artery supply?
What do the lenticulostriates supply?
Where does the basilar artery run?
On the anterior surface of the pons
What does the posterior cerebral artery supply?
What are the major components of the BBB?
Unfenestrated capillaries connected via gap jxns
Astrocyte foot processes
Where is CSF made?
Choroid plexus of lateral and 4th ventricles
How is CSF absorbed?