Bassett Collection Large Image - Lane Medical Library, Stanford University Medical Center

For permissions information regarding the use of these images, please contact Drew Bourn at dbourn@stanford.edu

Osteology

Skull, inferior close-up view, area of petrous part of temporal bone

1 .	Sphenoid process palatine bone
2 .	Lateral plate of pterygoid process
3 .	Pterygoid fossa
4 .	Medial plate of pterygoid process
5 .	Ala of vomer
6 .	Sphenooccipital fissure
7 .	Foramen lacerum
8 .	Lingula of sphenoid
9 .	Basal part occipital bone
10 .	Inferior surface of temporal bone
11 .	Petro-occipital fissure
12 .	Occipital condyle
13 .	Foramen magnum
14 .	Mandibular foramen
15 .	Infratemporal surface of sphenoid bone
16 .	Sphenosquamous suture
17 .	Angle of mandible
18 .	Foramen ovale
19 .	Foramen spinosum
20 .	Petrotympanic fissure
21 .	Styloid process
22 .	Carotid canal
23 .	Tympanic canaliculus
24 .	Mastoid canaliculus (partially obscured by posterior wall of jugular fossa)
25 .	Canaliculus chordae tympani
26 .	Stylomastoid foramen
27 .	Jugular fossa
28 .	External aperture of cochlear canaliculi