NASM.txt

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Author:
WilliamN.Jr.
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161300
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NASM.txt
Updated:
2012-07-06 11:34:58
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  1. What is the function of the muscle spindles and golgi tendon organs?
    • Spindles: Receptors sensitive to change in length of the muscle and rate of that change (Cause muscle to contract when excited)
    • GTO: Receptors sensitive to change in tension of the muscle and the rate of that change. (Cause musc to relax when excited)
  2. Depression (bone)
    Flattened or indented portion of bone, which can be a muscle of attachment site
  3. Process (bone)
    Projection protruding from bone where muscles, tendons, and ligaments can attach
  4. Arthrokinematics
    Joint motion
  5. Synovial Joints
    Held together by a joint capsule and ligaments and are most associated with movement in body (80% of joints in body) Include condyoid, hinge, saddle, pivot, ball and socket.
  6. Nonsynovial Joints
    Joints that do not have a joint cavity connective tissue or cartilage (sutures of skull)
  7. Function of joints
    All linked together, movement of one directly affects the motion of others.
  8. Ligament
    Primary connective tissue that connects bones together and provides stability, input to the nervous system, guidance, and the limitation of improper joint mvmnt
  9. Ligament and tendon healing
    Poor vascularity, very slow repair
  10. Sarcomere
    The functional unit of muscle that produces muscular contraction and consists of repeating sections of actin and myosin
  11. Neural Activation
    The contraction of a muscle generated by neural stimulation
  12. Motor Unit
    A motor neuron and all of the muscle fibers it innervates
  13. Neurotransmitter
    Chemical messengers that cross synapes to transmit electrical impulses from the nerve of the muscle
  14. Type 1 Muscle Fiber
    Slow twitch, less force produced, slow to fatigue, long term contractions (Stabilization)
  15. Type 2 Muscle Fiber
    Fast Twitch, dec oxygen delivery, more force, quick to fatigue, short term contractions
  16. Agonist
    Prime mover. Chest press-Pectoralis Major
  17. Synergist
    Assist prime mover. Chest press-Anterior delt, triceps
  18. Stabilizer
    Stabilize while prime mover and synergist work. Chest press-Rotator cuff
  19. Antagonist
    Oppose prime mover. Chest press(posterior delt)

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