1
.
| Temporal bone (squamous part) |
2
.
| Mastoid foramen |
3
.
| Mastoid part |
4
.
| Mastoid process |
5
.
| Tubercle of articulation |
6
.
| Sheath of styloid process |
7
.
| Styloid process |
8
.
| Occipital margin |
9
.
| Superior pyramidal angle |
10
.
| Posterior pyramidal surface |
11
.
| Petrosal part |
12
.
| External opening of vestibular aqueduct |
13
.
| Subarcuate fossa |
14
.
| Internal acoustic meatus |
15
.
| External opening cochlear canal |
16
.
| Posterior pyramidal angle |
17
.
| Pyramidal apex |
18
.
| Inferior pyramidal surface |
19
.
| Intrajugular process |
20
.
| Jugular fossa |
21
.
| Carotid canal |