1. Essentials of Human Anatomy & Physiology Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Slides 5.25a – 5.30b Seventh Edition Elaine N. Marieb Chapter 5 The Skeletal System Lecture Slides in PowerPoint by Jerry L. Cook

2. Paranasal Sinuses Slide 5.25a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Hollow portions of bones surrounding the nasal cavity Figure 5.10

3. Paranasal Sinuses Slide 5.25b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Functions of paranasal sinuses  Lighten the skull  Give resonance and amplification to voice Figure 5.10

4. The Hyoid Bone Slide 5.26 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  The only bone that does not articulate with another bone  Serves as a moveable base for the tongue Figure 5.12

5. The Fetal Skull Slide 5.27a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  The fetal skull is large compared to the infants total body length Figure 5.13

6. The Fetal Skull Slide 5.27b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Fontanelles – fibrous membranes connecting the cranial bones  Allow the brain to grow  Convert to bone within 24 months after birth Figure 5.13

7. The Vertebral Column Slide 5.28 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Vertebrae separated by intervertebral discs  The spine has a normal curvature  Each vertebrae is given a name according to its location Figure 5.14

8. Structure of a Typical Vertebrae Slide 5.29 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.16

9. Regional Characteristics of Vertebrae Slide 5.30a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.17a, b

10. Regional Characteristics of Vertebrae Slide 5.30b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 5.17c, d