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Chapter 1 The Human Body: An Orientation

Chapter 1 The Human Body: An Orientation. 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. Gross Anatomy Large structures Easily observable. Anatomy – Levels of Study.

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Chapter 1 The Human Body: An Orientation

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  1. Chapter 1The Human Body:An Orientation

  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

  3. Gross Anatomy • Large structures • Easily observable Anatomy – Levels of Study

  4. Microscopic Anatomy • Very small structures • Can only be viewed with a microscope Anatomy – Levels of Study

  5. Levels of Structural Organization Figure 1.1

  6. Integumentary • Forms the external body covering • Protects deeper tissue from injury • Synthesizes vitamin D • Location of cutaneous nerve receptors Organ System Overview

  7. Skeletal • Protects and supports body organs • Provides muscle attachment for movement • Site of blood cell formation • Stores minerals Organ System Overview

  8. Organ System Overview • Muscular • Allows locomotion • Maintains posture • Produces heat

  9. Nervous • Fast-acting control system • Responds to internal and external change • Activates muscles and glands Organ System Overview

  10. Endocrine • Secretes regulatory hormones • Growth • Reproduction • Metabolism Organ System Overview

  11. Cardiovascular • Transports materials in body via blood pumped by heart • Oxygen • Carbon dioxide • Nutrients • Wastes Organ System Overview

  12. Lymphatic • Returns fluids to blood vessels • Disposes of debris • Involved in immunity Organ System Overview

  13. Organ System Overview • Respiratory • Keeps blood supplied with oxygen • Removes carbon dioxide

  14. Digestive • Breaks down food • Allows for nutrient absorption into blood • Eliminates indigestible material Organ System Overview

  15. Urinary • Eliminates nitrogenous wastes • Maintains acid – base balance • Regulation of materials • Water • Electrolytes Organ System Overview

  16. Organ System Overview • Reproductive • Production of offspring

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