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ilovenyc

  • 4 years ago

The two basic and opposite actions that account for all muscle movements are contraction and extension.

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  1. Phascolarctos
    • 4 years ago
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    the question is??

  2. heena
    • 4 years ago
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    two muscle movements are contraction and relaxation not extension

  3. ilovenyc
    • 4 years ago
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    is it true or false

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