ethmoid bone
It is a light, spongy, irregular, odd bone located in the anterior part of the skull.
Features 4 parts:
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Horizontal Blade (Sieve)
- Crista Galli – triangular process in the midline
- Olfactory foramen – located next to the Galli crest and giving passage to the olfactory nerves
Perpendicular Blade
- Flattened lamina that forms the medial wall of the nasal septum
Lateral Masses (Labyrinth)
- Uncinate Process
- Superior Nasal Conch
- Middle Nasal Conch
The Ethmoid articulates with thirteen bones: Frontal (1), Sphenoid (1), Nasal (2), Lacrimal (2), Jaw (2), Palatine (2), Inferior Concha (2) and Vomer (1). ).
| ETMOID - TOP VIEW |
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| Source: SOBOTTA, Johannes. Atlas of Human Anatomy. 21 ed. Rio de Janeiro: Guanabara Koogan, 2000. |
| ETMOID - SIDE VIEW |
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| Source: SOBOTTA, Johannes. Atlas of Human Anatomy. 21 ed. Rio de Janeiro: Guanabara Koogan, 2000. |
| ETMOID - RELATIONSHIP WITH THE BONES OF THE FACE |
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| Source: SOBOTTA, Johannes. Atlas of Human Anatomy. 21 ed. Rio de Janeiro: Guanabara Koogan, 2000. |