1. Chapter 1 The Human Body: An Orientation
Essentials of Human Anatomy & Physiology
Seventh Edition
Elaine N. Marieb
Chapter 1 The Human Body: An Orientation
Slides 1.1 – 1.8
Lecture Slides in PowerPoint by Jerry L. Cook
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

2. The Human Body – An Orientation
Anatomy – study of the structure and shape of the body and its parts
Physiology – study of how the body and its parts work or function
Slide 1.1
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

3. Anatomy – Levels of Study
Gross Anatomy
Large structures
Easily observable
Figure 1.1
Slide 1.2a
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

4. Anatomy – Levels of Study
Microscopic Anatomy
Very small structures
Can only be viewed with a microscope
Figure 14.4
Slide 1.2b
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

5. Levels of Structural Organization
Figure 1.1
Slide 1.3
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6. Organ System Overview Integumentary Forms the external body covering
Protects deeper tissue from injury
Synthesizes vitamin D
Location of cutaneous nerve receptors
Figure 1.2a
Slide 1.4
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

7. Organ System Overview Skeletal Protects and supports body organs
Provides muscle attachment for movement
Site of blood cell formation
Stores minerals
Figure 1.2b
Slide 1.5
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8. Organ System Overview Muscular Allows locomotion Maintains posture
Produces heat
Figure 1.2c
Slide 1.6
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9. Organ System Overview Nervous Fast-acting control system
Responds to internal and external change
Activates muscles and glands
Figure 1.2d
Slide 1.7
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

10. Organ System Overview Endocrine Secretes regulatory hormones Growth
Reproduction
Metabolism
Figure 1.2e
Slide 1.8
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings