| 1
.
| Lamina cribrosa (pointer indicates fascicles of olfactory nerve) |
| 2
.
| Falx cerebri (cut across) |
| 3
.
| Upper pointer: Anterior clinoid process Lower pointer: Internal carotid artery (entering subarachnoid space) |
| 4
.
| Right pointer: Anterior cerebral artery (cut off) Left pointer: Medial cerebral artery (cut off) |
| 5
.
| Upper pointer: Posterior communicating artery Lower pointer: Posterior cerebral artery (cut off) |
| 6
.
| Upper pointer: Interpeduncular fossa Lower pointer: Cerebral peduncle |
| 7
.
| Upper pointer: Nucleus ruber Lower pointer: Colliculus inferior |
| 8
.
| Superior petrosal sinus (blue latex visible through dura; note that this sinus and the one on the opposite side indicate the line of attachment of tentorium to upper border of petrous portion of temporal bone) |
| 9
.
| Inferior cerebral veins (cut off) |
| 10
.
| Great cerebral vein (formed by confluence of paired internal cerebral veins) |
| 11
.
| Inferior sagittal sinus (cut across) |
| 12
.
| Cerebellar tentorium |
| 13
.
| Lens |
| 14
.
| Retina |
| 15
.
| Optic nerve |
| 16
.
| Infundibulum (cut across) |
| 17
.
| Upper pointer: Dorsum sellae Lower pointer: Oculomotor nerve |
| 18
.
| Medial cranial fossa |
| 19
.
| Upper pointer: Substantia nigra Lower pointer: Cerebral aqueduct |
| 20
.
| Petrosal part of the temporal bone (covered by dura; pointer indicates eminentia arcuata) |
| 21
.
| Margin of the tentorial incisure |
| 22
.
| Transverse sinus |
| 23
.
| Superior sagittal sinus (cut across) |
| *
.
| [Legend above restored translation from Latin] |
