Chapter 12 Mastering .docx - Chapter 12 Mastering END PLATE...

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Chapter 12 Mastering END PLATE POTENTIAL1.Action potentials travel the length of the axons of motor neurons to theaxon terminals. These motor neurons __________.2.Which of the following is most directly responsible for the coupling of
excitation to contraction of skeletal muscle fibers?
3.After a power stroke, the myosin head must detach from actin beforeanother power stroke can occur. What causes cross bridge detachment?4.When larger stimulatory forces are needed, the nervous system can
activate extra fibers, increasing the number of active motor units. This isknown as
5.What is the region of the striated muscle's banding patterns that containsonly the connections between the tails of myosin molecules and is themid-point of the sarcomere?
6.What is the name of the receptors found in T-tubule membranes thatfunction as voltage sensors?7.When a skeletal muscle is passively stretched, that cell has a tendency to
spring back once the force that was stretching the muscle is removed dueto

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