1
.
| Internal carotid artery right and optic nerve |
2
.
| Anterior clinoid process |
3
.
| Position of superior orbital fissure |
4
.
| Trochlear nerve (IV) |
5
.
| Ophthalmic nerve (V) |
6
.
| Cavernous sinus |
7
.
| Inner surface of an unusual venous sinus which passed posteriorly into the superior petrosal sinus (see also Section I, 42) |
8
.
| Middle cranial fossa |
9
.
| Branch of internal carotid artery to hypophysis |
10
.
| Trigeminal nerve (V) entering Meckel's cave |
11
.
| Circular sinus and infundibulum |
12
.
| Dorsum sellae |
13
.
| Oculomotor nerve (III) and posterior clinoid process |
14
.
| Basilar venous plexus |
15
.
| Internal carotid artery (cavernous part) |
16
.
| Cavernous nerve plexus |
17
.
| Area of communication of cavernous nerve plexus with oculomotor, trochlear and ophthalmic nerves |
18
.
| Dura mater enclosing trigeminal nerve |
19
.
| Greater part of trigeminal nerve (V) |
20
.
| Cut edge of tentorium cerebelli |
21
.
| Semilunar ganglion (trigeminal) |