1. THE MUSCULAR SYSTEM CHAPTER 10

2. Interactions of Skeletal Muscle Agonist=prime mover Agonist=prime mover Antagonist=opposes the agonist Antagonist=opposes the agonist Synergist=helpers Synergist=helpers Fixators=immobilizers Fixators=immobilizers

3. Naming Skeletal Muscles Location Location Shape Shape Relative size Relative size Direction Direction Number of origins Number of origins Location of attachments Location of attachments Action Action

4. Fascicle Arrangement

5. Muscle Mechanics Lever Systems

6. What is a Lever? A lever is a rigid bar that moves on a fixed point, or fulcrum, when a force is applied to it. The applied force, or effort, is used to move a resistance, or load.

7. Mechanical Advantage

8. Mechanical Disadvantage

9. Three Classes of Levers

12. Human Muscular System

34. Homeostatic Imbalances Myasthenia gravis Myasthenia gravis Rigor mortis Rigor mortis Atrophy Atrophy Duchenne muscular dystrophy Duchenne muscular dystrophy Hernia Hernia Myalgia Myalgia Fibromyositis Fibromyositis Strain Strain