Wondering about the anatomy of the ethmoid bone? This is the video for you! Once you’re clued up, why not test yourself with a quiz? This one would be perfect:
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The ethmoid bone is a single porous bone that makes up the middle area of the viscerocranium and forms the midfacial region of the skull. It is an unpaired bone in the ethmoid notch of the frontal bone that contributes to the molding of the orbit, nasal cavity, nasal septum and the floor of the anterior cranial fossa.
The bone consists of a perpendicular plate and two ethmoidal labyrinths which are all superiorly attached to the cribriform plate. In this video we show you the orbital part of the ethmoid which extends towards the orbit. This forms the medial wall of the orbit. The ethmoid labyrinths lie on both lateral sides and contain numerous little cavities with ethmoidal cells which are referred to as the ethmoidal sinus.
In this video:
0:07 Definition of the ethmoid bone
0:16 Function of the ethmoid bone
0:29 Structure of the ethmoid bone
0:45 Orbital part of the ethmoid bone
0:52 The ethmoid labyrinths
1:17 Hiatus semilunaris
1:36 Perpendicular plate of the ethmoid
1:51 Cribriform plate
2:11 Crista galli
2:31 Borders of the ethmoid bone
Ready to test your knowledge on the ethmoid bone? Take this quiz! → https://khub.me/6rdml
Read more on the ethmoid bone in this article, where we go into lots more detail! https://khub.me/5w3w0
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Ethmoid Bone of the Viscerocranium - Human Anatomy | Kenhub | |
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| Education | Upload TimePublished on 19 Jan 2018 |
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