This is an anatomy video tutorial covering the seven bones that form the bony orbit of the skull. Test your knowledge on this topic here: khub.me/vqp6y
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The bony orbit of the skull refers to the bones that make up the walls and margins of the orbits, or eye sockets. Generally we consider there to be four main walls of the orbit: the roof, medial and lateral walls and floor.
The following bones contribute to the orbital walls:
- frontal bone (orbital part)
- lacrimal bone
- ethmoid bone (orbital plate)
- zygomatic bone (orbital process)
- maxillary bone (orbital process/surface)
- palatine bone (orbital process)
- sphenoid bone (greater and lesser wings and body)
The orbital margin or rim refers to the circular margin, or 'lip' of the orbit, while the orbital apex is located on the posterior wall of the orbit; this is where the optic canal, superior orbital fissure and inferior orbital fissure transmit various nerves and vessels to and from the orbit.
Roof of the orbit
Lateral wall of the orbit
Medial wall of the orbit
Floor of the orbit
Want to test your knowledge on bones of the orbit? Take this quiz:
khub.me/we3gv
Read more on the bones of the orbit, as well as its contents and related clinical disorders in this article: khub.me/wqdam
For more engaging video tutorials, interactive quizzes, articles and an atlas of Human anatomy and histology, go to khub.me/9bhoj