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Learn about different types of bone fractures, their treatment methods, and the anatomy and function of the axial skeleton, including the skull, paranasal sinuses, and hyoid bone.
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Bone Fractures • Fracture—break in a bone • Types of bone fractures • Closed (simple) fracture—break that does not penetrate the skin • Open (compound) fracture—broken bone penetrates through the skin • Bone fractures are treated by reduction and immobilization
Common Types of Fractures Table 5.2
The Axial Skeleton • Forms the longitudinal axis of the body • Divided into three parts • _______ • __________________ • __________________ * ________________
The Axial Skeleton Figure 5.6a
The Axial Skeleton Figure 5.6b
The Skull • Two sets of bones • ____________ • ____________ • Bones are joined by _________ • Only the __________ is attached by a freely movable joint
Human Skull, Lateral View Figure 5.7
Human Skull, Superior View Figure 5.8
Human Skull, Inferior View Figure 5.9
Human Skull, Anterior View Figure 5.11
Paranasal Sinuses • Hollow portions of bones surrounding the nasal cavity • Functions of paranasal sinuses • __________ the skull • Give ____________ and _____________ to voice
Paranasal Sinuses Figure 5.10a
Paranasal Sinuses Figure 5.10b
The Hyoid Bone • The only bone _____________________________ with another bone • Serves as a moveable base for the tongue • Aids in ___________ and ________
The Hyoid Bone Figure 5.12
