1
.
| Crista gall & lamina cribrosa ethmoid bone |
2
.
| Orbital part of frontal bone & sphenofrontal suture |
3
.
| Lesser wing sphenoid bone |
4
.
| Greater wing sphenoid bone |
5
.
| Sphenosquamous suture |
6
.
| Temporal bone (squamous part) |
7
.
| Carotid canal & foramen lacerum |
8
.
| Petrosquamous fissure |
9
.
| Petrosal part of temporal bone |
10
.
| Squamous suture |
11
.
| Occipitomastoid suture |
12
.
| Mastoid part of temporal bone |
13
.
| Occipital bone (squamous part) |
14
.
| Parietal bone |
15
.
| Lambdoidal suture |
16
.
| Foramen magnum |
17
.
| Internal occipital crest (cruciate eminence) |
18
.
| Anterior cranial fossa |
19
.
| Optic foramen & anterior clinoid process |
20
.
| Sella turcica & posterior clinoid process |
21
.
| Foramen ovale |
22
.
| Foramen spinosum |
23
.
| Middle cranial fossa |
24
.
| Clivus |
25
.
| Condyloid canal |
26
.
| Posterior cranial fossa |
27
.
| Intersutural bone |