| 1
.
| Optic nerve (II) |
| 2
.
| Middle cerebral artery (cut across) |
| 3
.
| Internal carotid artery (within chiasmatic cistern) |
| 4
.
| Middle cranial fossa |
| 5
.
| Optic tract |
| 6
.
| Oculomotor nerve (llI) |
| 7
.
| Choroidal artery (anterior) |
| 8
.
| Posterior cerebral artery |
| 9
.
| Petrosal part of temporal bone (covered with dura) |
| 10
.
| Upper pointer: Tributaries of basal vein in region of tip of inferior horn of lateral ventricle; Lower pointer: Tentorium cerebelli |
| 11
.
| Temporal branches of posterior cerebral artery |
| 12
.
| Trochlear nerve (IV) |
| 13
.
| Continuation of main trunk of posterior cerebral artery |
| 14
.
| Anterior cerebral artery |
| 15
.
| Subcallosal gyrus |
| 16
.
| Anterior communicating artery |
| 17
.
| Anterior commissure (cut across) |
| 18
.
| Interventricular foramen (of Monro) |
| 19
.
| Free part of column of fornix |
| 20
.
| Optic recess |
| 21
.
| Massa intermedia (cut through) |
| 22
.
| Internal capsule |
| 23
.
| Choroid plexus third ventricle and stria medullaris thalami |
| 24
.
| Floor of third ventricle |
| 25
.
| Lateral geniculate body |
| 26
.
| Cerebral auditory aqueduct |
| 27
.
| Posterior commissure (cut across) |
| 28
.
| Basal vein [Rosenthal] |
| 29
.
| Internal cerebral vein |
| 30
.
| Corpus callosum (splenium) |
