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ELAINE N. MARIEB
EIGHTH EDITION
5
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
PowerPoint® Lecture Slide Presentation by Jerry L. Cook, Sam Houston University
ESSENTIALSOF HUMAN
ANATOMY& PHYSIOLOGY
PART A
The Skeletal System
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Objective 1
Identify the subdivisions of the skeleton as axial or appendicular
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The Skeletal System Parts of the skeletal system
Bones (skeleton)
Joints – point of movement
Cartilages – protection
Ligaments – connect bone to bone
Divided into two divisions
1. Axial skeleton
2. Appendicular skeleton
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The Axial Skeleton Forms the longitudinal, central part of the
body
Divided into three parts
1. Skull
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The Skull
Figure 5.7
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The Axial Skeleton Forms the longitudinal, central part of the
body
Divided into three parts
1. Skull
2. Vertebral column
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The Vertebral Column Vertebrae separated
by intervertebral discs
The spine has a normal curvature
Each vertebrae is given a name according to its location
Figure 5.14
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The Axial Skeleton Forms the longitudinal, central part of the
body
Divided into three parts
1. Skull
2. Vertebral column
3. Bony thorax
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The Bony Thorax Forms a cage
to protect major organs
Made-up of three parts
Sternum
Ribs
Thoracic vertebrae
Figure 5.19a
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The Appendicular Skeleton1. Limbs (appendages) – all arm and leg
bones
2. Pectoral girdle
Clavicle, scapula
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Bones of the Shoulder Girdle
Figure 5.20a–b
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The Appendicular Skeleton1. Limbs (appendages) – all arm and leg
bones
2. Pectoral girdle
Clavicle, scapula
3. Pelvic girdle
Ilium, ishium, pubic bone
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The Pelvis
Figure 5.23a