A&P Lab Quiz 3 (7)

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Author:
hey_itsdarra
ID:
310306
Filename:
A&P Lab Quiz 3 (7)
Updated:
2015-10-26 15:52:51
Tags:
UofM Lab
Folders:
UofM A&P Lab
Description:
quiz 3
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  1. When a prime mover contracts and bones move, the muscle than must relax is called the
    agonist
  2. Ligaments and tendons are formed from
    connective tissue
  3. The less movable point of attachment of a muscle crossing a joint when it contracts is the
    origin
  4. What nervous system division originates voluntary muscle movements?
    central nervous system
  5. As their concentration in the sarcoplasm increases, calcium ions bind to ___, changing its shape and liberating tropomyosin from actin  binding sites
    troponin
  6. What neurotransmitter is released at the muscle junction when an action potential arrives at the motor neuron terminal?
    Acetylocholine (ACh)
  7. During the propagation of the excitation wave along the sarcolemma, the action potentials travel down the ____, stimulating the intracellular release of calcium ions
    transverse (T) tubules
  8. According to the sliding filament model of muscle contraction,  the myofilaments sliding over each other result in the overlapping of myosin and
    actin
  9. A motor neuron plus all of the muscles fibers which it innervates
    A motor unit
  10. The contraction process in a skeletal muscle is initiated by a release of ___ ions from the sarcoplasmic reticulum
    calcium

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