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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