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Chapter 9

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Terms in this set (3)

  • Four patterns of fascicles + examples.

    1. Parallel:Fibers run parallel. (Example: sartorius)

    2. Convergent: Wide origin → narrow insertion. (Example: pectoralis major)

    3. Pennate: Fibers attach at an angle to tendon. (Example: rectus femoris)

    4. Circular: Fibers form a circle around an opening. (Example: orbicularis oris)

  • What is the most common type of lever in the body?

    In a third-class lever:

    Effort is between the fulcrum and the load.

    Example: biceps flexing the elbow

  • Relationship between Agonist and Antagonist muscles.

    Agonist: The prime mover that performs the movement.

    Antagonist: Does the opposite movement.