1
.
| Posterior cerebral artery left (cut across) |
2
.
| Falx cerebri (upper pointer) and olfactory tract |
3
.
| Optic nerve (II) |
4
.
| Internal carotid artery left (cut across) |
5
.
| Oculomotor nerve (III) within cavernous sinus |
6
.
| Trochlear nerve (IV) within cavernous sinus |
7
.
| Ophthalmic nerve (VI) within cavernous sinus |
8
.
| Cavernous sinus |
9
.
| Semilunar ganglion (trigeminal) and trigeminal nerve (V) |
10
.
| Middle cranial fossa (dura removed) |
11
.
| Facial nerve (VII) and Vestibulocochlear (VIII) entering internal acoustic meatus |
12
.
| Superior petrosal sinus (opened) |
13
.
| Transverse sinus |
14
.
| Position of sigmoid portion of transverse sinus (unopened) |
15
.
| Posterior cranial fossa |
16
.
| Cerebral aqueduct |
17
.
| Arteries within interpeduncular fossa |
18
.
| Superior cerebellar arteries |
19
.
| Basilar artery |
20
.
| Straight sinus |
21
.
| Cerebellar lingula |
22
.
| Basilar part of pons (cut away) |
23
.
| Basilar plexus (upper pointer) and abducens nerve (VI) |
24
.
| Internal auditory artery |
25
.
| Anterior inferior cerebellar artery |
26
.
| Choroid plexus fourth ventricle |
27
.
| Vertebral artery right |
28
.
| Vagus nerve (X) and inferior petrosal sinus (upper pointer indicates position of this sinus beneath the dura) |
29
.
| Roots hypoglossal nerve (XII) |
30
.
| Medulla oblongata (cut across to midline) |