Lane Medical Library

Bassett Collection of Stereoscopic Images of Human Anatomy

Osteology

Roentgenogram, right temporal bone, superior view

Image #40-5

KEYWORDS: Bones cartilage joints, Ear.

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Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Osteology
Roentgenogram, right temporal bone, superior view
The contours of the bony labyrinth are visible because of the air which fills the labyrinth and contrasts with the surrounding petrous bone.
1 . Petrosal part
2 . Carotid canal (partially beneath cochlea)
3 . Cochlea
4 . Borders of internal acoustic meatus
5 . Common crus semicircular canal
6 . Semicircular canal superior (note ampulla near junction of anterior crus with vestibule)
7 . Crus simplex semicircular canal
8 . Semicircular canal posterior (ampulla is visible at inferior termination of canal in vestibule)
9 . Temporal bone (squamous part)
10 . Tympanic part
11 . Vestibulum
12 . Malleus (faintly visible within middle ear cavity)
13 . Incus (faintly visible)
14 . External acoustic meatus (beneath squama)
15 . Facial canal
16 . Stylomastoid foramen (in background)
17 . Semicircular canal lateral (ampulla difficult to distinguish at anterior termination of canal)
18 . Mastoid process

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