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Focus: The Individual Bones of the Skull Cranial Bones. one occipital bone foramen magnum two parietal bones one frontal bone frontal sinuses. two temporal bones auditory ossicles one sphenoid one ethmoid. Figure 7.4 The Sectional Anatomy of the Skull. Figure 7.4a. - PowerPoint PPT Presentation
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• one occipital bone– foramen magnum
• two parietal bones• one frontal bone
– frontal sinuses
Focus: The Individual Bones of the Skull Cranial Bones
• two temporal bones– auditory ossicles
• one sphenoid• one ethmoid
Figure 7.4 The Sectional Anatomy of the Skull
Figure 7.4a
Figure 7.4 The Sectional Anatomy of the Skull
Figure 7.4b
Chapter 7, part 2
The Axial Skeleton
Figure 7.5 The Occipital and Parietal Bones
Figure 7.5
Figure 7.6 The Frontal Bone
Figure 7.6
Figure 7.7 The Temporal Bones
Figure 7.7
Figure 7.9 The Ethmoid
Figure 7.9
• Maxillary bones• Mandible • Palatine bones• Nasal bones• Vomer
Facial bones
• Inferior nasal conchae• Zygomatic bones• Lacrimal bones• Hyoid
• Largest facial bones• Form the upper jaw and most of the hard palate
Maxillae
Figure 7.10 The Maxillary and Palatine Bones
Figure 7.10
• Palatine bones– Small “L” shaped bones– Form the posterior hard palate and floor of the nasal
cavity• Nasal bones
– Superior border of external nares
Palatine and Nasal Bones
• Vomer– Inferior portion of the nasal septum
• Zygomatic bone– Temporal process articulates with zygomatic process
of temporal bone• Lacrimal bones
– Smallest bones of the face– Sit medially in orbit
Vomer, Zygomatic and Lacrimal bones
Figure 7.11 The Smaller Bones of the Face
Figure 7.11
• Mandible– Bone of the lower jaw
• Hyoid– Suspended by stylohyoid ligaments– Supports the larynx
Mandible and Hyoid bones
Figure 7.12 The Mandible and Hyoid Bones
Figure 7.12a
Figure 7.12 The Mandible and Hyoid Bones
Figure 7.12b, c
• Seven bones in the orbital complex• Nasal complex = bones that enclose the
nasal cavities and paranasal sinuses
The orbital and nasal complexes
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