| 1
.
| Cut edge of bony roof of external auditory canal |
| 2
.
| Flaccid part of tympanic membrane |
| 3
.
| Lateral process malleus (forming malleolar prominence) |
| 4
.
| Manubrium of malleus (visible as malleolar stria) |
| 5
.
| Pars tensa tympanic membrane |
| 6
.
| Petrotympanic fissure |
| 7
.
| External surface of tympanic annulus seen at 3 in previous view |
| 8
.
| Temporal bone (squamous part) |
| 9
.
| Sphenosquamous suture |
| 10
.
| Limbus tympanic membrane |
| 11
.
| Annulus fibrocartilaginous tympanic membrane |
| 12
.
| Cut edge of osseous floor of auditory canal |
| 13
.
| Angular spine |
| 14
.
| Tympanic part temporal bone |
| 15
.
| Alar fascia |
| 16
.
| Styloid process |
| 17
.
| Temporal bone (squamous part) forming roof of external acoustic meatus |
| 18
.
| Mastoid cells |
| 19
.
| Skin lining external acoustic meatus |
| 20
.
| Tympanomastoid suture |
| 21
.
| Cut edge of tympanic part of temporal bone |
| 22
.
| Lateral margin of tympanic part of temporal bone |
| 23
.
| Facial nerve (VII) |
