Fractures, Healing & Axial Skeleton

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Presentation transcript:

Fractures, Healing & Axial Skeleton Chapter 5.3 Lecture Fractures, Healing & Axial Skeleton

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

Common Types of Fractures Table 5.2

Repair of Bone Fractures Hematoma (blood-filled swelling) is formed Break is splinted by fibrocartilage to form a callus Fibrocartilage callus is replaced by a bony callus Bony callus is remodeled to form a permanent patch

Stages in the Healing of a Bone Fracture Hematoma External callus Bony callus of spongy bone Healed fracture New blood vessels Internal callus (fibrous tissue and cartilage) Spongy bone trabecula Hematoma formation Fibrocartilage callus formation Bony callus formation Bone remodeling Figure 5.5

The Axial Skeleton Forms the longitudinal axis of the body Divided into three parts Skull Vertebral column Bony thorax

The Axial Skeleton Figure 5.6a

The Axial Skeleton Figure 5.6b

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