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Figure 3-9.—Posterior view of facial skeleton | Up
Dental Volume 1 - Dentist training manual for military dentists | Next
BONES OF THE EAR |
floor of the orbits are the maxillary sinuses; the largest
of the sinuses.
Palatine Bones
The palatine bones are located behind the maxillae
(fig. 3-10). The bones are somewhat L-shaped and
form the posterior portion of the hard palate and the
floor of the nose.
Anteriorly, they join with the
maxillary bone.
Zygomatic Bones (Zygoma, Malar Bone)
The zygomatic bones make up the prominence of
the cheeks and extend from the zygomatic process of
the temporal bone to the zygomatic process of the
maxilla. The zygomatic bones form the “cheek bones”
and help to form the sides and floor of the orbits.
Figure 3-10.—Anterior view of palatine bones.
Lacrimal Bones
The lacrimal bones are the smallest and most
fragile of the cranial bones. These thin, scalelike
structures are located in back of the frontal process of
the maxilla.
Nasal Bones
The nasal bones are small oblong bones somewhat
rectangular in shape. They lie side by side and are
fused at the midline to form the bridge of the nose
(nasal septum). These bones are responsible for the
shape of the nose.
Inferior Nasal Conchae
The inferior nasal conchae are curved, fragile,
scroll-shaped bones that lie in the lateral walls of the
nasal cavity.
They provide support for mucous
membranes within the nasal cavity.
Vomer Bone
The vomer bone is a thin, flat, single bone almost
trapezoid in shape. It connects with the ethmoid bone
and together they form the nasal septum.
Mandible
The mandible (lower jaw-bone) is the longest,
strongest, and the only movable bone in the skull.
Figure 3-11 illustrates the anatomy of the mandible.
Figure 3-11.—Anatomy of the mandible; lateral view (left), inferior view (right).
3-5
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