Lane Medical Library

Bassett Collection of Stereoscopic Images of Human Anatomy

Floor of cranial cavity

Middle cranial fossa; dissection of left cavernous sinus (continued); semilunar ganglion; petrosal nerves

Image #51-1

KEYWORDS: Bones cartilage joints, Peripheral nervous system, Vasculature.

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

Floor of cranial cavity
Middle cranial fossa; dissection of left cavernous sinus (continued); semilunar ganglion; petrosal nerves
More veins have been cut away to expose the three divisions of the trigeminal nerve (8,10,20) the abducens nerve (14) and the petrosal nerves (19,21).
1 . Circular sinus
2 . Tuberculum sellae
3 . Oculomotor nerve (III)
4 . Band of dura mater extending between anterior and posterior clinoid processes
5 . Internal carotid artery
6 . Optic foramen
7 . Trochlear nerve (IV)
8 . Ophthalmic nerve (V1)
9 . Superior orbital fissure
10 . Maxillary nerve (V2) entering foramen rotundum
11 . Basilar venous plexus and posterior clinoid process
12 . Posterior longitudinal ligament (cut off)
13 . Ligamentous band of dura mater extending from tip of petrous part of temporal bone to sphenoid bone (petrodinoid ligament)
14 . Abducens nerve (VI)
15 . Major portion of trigeminal nerve (V)
16 . Meckel's cave
17 . Filament of cavernous nerve plexus
18 . Semilunar ganglion (trigeminal)
19 . Upper pointer: Thin lamina of bone which covers carotid canal Lower pointer: Major superficial petrous nerve
20 . Mandibular nerve (V3)
21 . Lesser superficial petrosal nerve
22 . Middle meningeal artery (cut off)

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