The Human Body – An Orientation Slide 1.1 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings 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

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

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

Levels of Structural Organization Slide 1.3 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 1.1

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

Organ System Overview Slide 1.5 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Skeletal Protects and supports body organs Provides muscle attachment for movement Site of blood cell formation Stores minerals Figure 1.2b

Organ System Overview Slide 1.6 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Muscular Allows locomotion Maintains posture Produces heat Figure 1.2c

Organ System Overview Slide 1.7 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Nervous Fast-acting control system Responds to internal and external change Activates muscles and glands Figure 1.2d

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