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Chapter 1 Introduction to Anatomy and Physiology.

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1 Chapter 1 Introduction to Anatomy and Physiology

2 Anatomy Examines the morphology (or structures) of the body. – Form and organization of organisms.

3 Physiology Examines the functions of the body. – What do structures do? – Why do structures do the things they do?

4 Anatomy and Physiology Anatomy and physiology are interconnected and depend on one another for life to exist. (Structure is related to function.)

5 Examining Organisms as Parts to Whole Atoms – Building blocks of matter. – Composed of subatomic particles. – Form molecules which group together to form macromolecules.

6 Examining Organisms as Parts to Whole Cells – Basic units of structure and function in organisms. – Vary in characteristics such as size and shape. – All cells contain organelles that carry out specific functions. Remember that organelles are made out of large molecules such as proteins, carbohydrates, lipids, and nucleic acids. – Most cells have a complete set of genetic instructions but only use a subset of the instructions, which allows the cell develop specialized functions.

7 Examining Organisms as Parts to Whole Tissues – Masses or layers of cells that all have similar functions.

8 Examining Organisms as Parts to Whole Organs – Groups of similarly functioning tissues.

9 Examining Organisms as Parts to Whole Organ Systems – Groups of organs working together to perform specific functions.

10 Examining Organisms as Parts to Whole Organisms – Groups of interacting organ systems.

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