Essentials of Human Anatomy & Physiology Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Slides 5.16 – 5.24 Seventh Edition Elaine N. Marieb Chapter 5 The Skeletal System Lecture Slides in PowerPoint by Jerry L. Cook

Bone Fractures Slide 5.16 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  A 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  Realignment of the bone

Common Types of Fractures Slide 5.17 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Table 5.2

Simple Fracture

Compound Fracture

Depressed Fracture

Spiral Fracture

Greenstick Fracture

Repair of Bone Fractures Slide 5.18 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  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 Slide 5.19 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.5

The Axial Skeleton Slide 5.20a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Forms the longitudinal part of the body  Divided into three parts  Skull  Vertebral column  Bony thorax

The Axial Skeleton Slide 5.20b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.6

The Skull Slide 5.21a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Two sets of bones  Cranium  Facial bones  Bones are joined by sutures  Only the mandible is attached by a freely movable joint

The Skull Slide 5.21b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.7

Bones of the Skull Slide 5.22 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.11

Human Skull, Superior View Slide 5.23 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.8

Human Skull, Inferior View Slide 5.24 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.9