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Bassett Collection of Stereoscopic Images of Human Anatomy

Floor of cranial cavity

Structures inferior to anterior and middle cranial fossae

Image #50-4

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

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Floor of cranial cavity
Structures inferior to anterior and middle cranial fossae
Bone has been removed to expose structures underlying the floor of the anterior part of the cranial vault.
1 . Mucosa of frontal sinus
2 . Orbital part of frontal bone
3 . Position of anterior ethmoidal foramen (opened)
4 . Olfactory bulb
5 . Periorbita
6 . Mucosa of ethmoidal cell (posterior)
7 . Position of maxillary sinus (in depths of view)
8 . Maxillary nerve (V)
9 . Oculomotor nerve (III)
10 . Part of pterygoid venous plexus
11 . Deep temporal nerve posterior
12 . Ophthalmic nerve (VI)
13 . External pterygoid muscle
14 . Abducens nerve (VI)
15 . Crista galli
16 . Mucosa of sphenoid sinus
17 . Middle cranial fossa
18 . Optic nerves (II)
19 . Internal carotid artery (right and left)
20 . Hypophysis (left half cut away)
21 . Sella turcica
22 . Dorsum sellae