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

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

Organ System Overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Integumentary External body covering Synthesizes vitamin D Location of cutaneous nerve receptors Figure 1.2a

Organ System Overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Skeletal Protects and supports body organs Stores minerals Blood cell formation- hematopoiesis Figure 1.2b

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

Organ System Overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Cardiovascular Transports materials in body via blood: 1.Oxygen 2.Carbon dioxide 3.Nutrients 4.Wastes Figure 1.2f

Organ System Overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Respiratory Keeps blood supplied with oxygen Removes carbon dioxide Figure 1.2h

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

Organ System Overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Urinary Eliminates nitrogenous wastes Maintains pH balance Regulation of materials: 1.Water 2.Electrolytes Figure 1.2j

Organ System Overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Digestive Breaks down food Allows blood to absorb nutrients Eliminates indigestible material Figure 1.2i

Organ System Overview Slide 1.14 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Reproductive Production of offspring Figure 1.2k

Organ System Overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Endocrine Secretes regulatory hormones for: 1.Growth 2.Reproduction 3.Metabolism Figure 1.2e

Organ System Overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Lymphatic/Immune Returns fluids to blood vessels Disposes of debris Involved in immunity Figure 1.2g