anatomy oct1 hr2 - 10/01/08 2nd hour CHAPTER 10 SKELETAL...

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10/01/08 2 nd hour CHAPTER 10 SKELETAL MUSCLE - Four basic properties of skeletal muscle o Excitability When a nerve stimulates a muscle o Contractibility A muscle can get shorter o Elasticity When you remove the stimulus, muscles return to their relaxed position o Extensibility Can be extended beyond their relaxed length Good example is sets of opposing muscles in arms and legs - Functions of skeletal muscle o Body movement Enables body to move from point a to point b; and also a part of your body relative to the rest of your body o Posture Maintain erect posture because of muscle contraction o Heat production Smooth muscles and cardiac muscles give you enough heat to keep normal body temperature; skeletal muscles allow you to produce excess heat o Storage of urine and feces Skeletal muscles are under voluntary control; skeletal muscles are what allow you to delay defecation and/or urination o Support of abdominal and pelvic cavities - Structure of skeletal muscle
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This note was uploaded on 03/18/2009 for the course BS 240 taught by Professor Zink during the Spring '09 term at University of the Sciences in Philadelphia.

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anatomy oct1 hr2 - 10/01/08 2nd hour CHAPTER 10 SKELETAL...

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