1. The challenge of the skull

2. Hypotension and cerebral perfusion

3. Elevated cerebral pressure

4. Normal cerebral autoregulation

5. Hypertension and autoregulation

6. Cerebral blood supply

7. Cerebral vessels in situ

8. Third nerve sandwich

9. Blood supply to the medulla

10. Blood supply to the pons

11. Blood supply to the midbrain

12. Blood supply to cerebral convexity

13. Blood supply to cerebral ventrum

14. Blood supply to cerebral midline

15. Cranial meninges

16. Cranial bleeds

17. Dural folds

18. Venous sinuses

19. Blood-brain and blood-cerebrospinal barriers

20. fMo: foramen of Monro (n=2) fL: foramen of Luschka (n=2) fMa: foramen of Magendie (n=1) Cerebrospinal fluid flow within the ventricular spaces

21. Cerebrospinal fluid flow within the subarachnoid space

22. Cerebral veins and sinuses

23. Bridging veins A B

24. Spinal meninges A B