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

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Osteology

Interior of base of skull

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