Материал: Анатомия черепа
The horseshoe-shaped mandible is the largest and strongest of the facial bones.
It is also the only freely moveable bone of the skull. The mandible articulates with the temporal bones at the temporomandibular joint.
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The maxillae form the upper jaw and the boundary of three cavities:
*the roof of the mouth
*the floor and lateral wall of the nasal cavity
*the floors of the orbits.
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Each zygomatic bone forms the prominence of a cheek (the “cheekbones”).
Factoid: People with high cheekbones simply have zygomatic bones that project outward more.
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The nasal bones make up the bridge of the nose and attach to the nasal cartilage.
The lacrimal bones (inside the orbits) contain the lacrimal sacs that continue as the nasolacrimal ducts, or tear ducts.
The nasal and lacrimal bones are some of the smallest bones to make up the facial bones.
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The thin vomer bone forms the lower part of the nasal septum.
The superior half of the vomer is fused with the perpendicular plate of the ethmoid, and its lower half attaches to the septal cartilage.
The posterior border is free and separates the choanae, also known as the internal nares.