Muscle Test Study Guide

  1. Which muscle is non-striated and involuntary? Which is striated and voluntary? Which is striated and involuntary?
  2. What is the ability to shorten and thicken? The ability to stretch? The ability to respond to a stimulus? The ability to resume normal length after stretching?
  3. What is the connective tissue covering around a single muscle cell? Around fascicles? Around the outside of a muscle? That binds muscles to underlying tissue or in functional groups?
  4. What is the fascicle arrangement in which short fascicles are attached to a central tendon? In which fascicles go from a broad origin to a narrow insertion?
  5. What band is made of thick filament? Band of thin filament? What are thin filaments anchored to? What disappears when muscles contract?
  6. What protein is the thick filament made of? What 3 proteins are the thin filament made of?
  7. What thin filament protein has the binding site for myosin? Blocks the myosin binding site? Moves the blocker away from the binding site? What event causes the moving of the blocker from the myosin binding site?
  8. What happens when the nerve impulse reaches the axon ending of the motor neuron? What is the first event that happens on the muscle cell? What is the purpose of T tubules? What is the purpose of the sarcoplasmic reticulum?
  9. What event puts the myosin head into its high energy configuration? What is released when the myosin head pulls the actin? What causes the myosin head to disengage from the actin? The myosin pulls the actin toward the center of what functional unit of muscle contraction?
  10. What is a smooth, sustained contraction, resulting from a number of motor neuron impulses?
  11. What 2 events happen to allow muscles to relax from a contraction?
  12. What is a motor unit? What size is better for power? What size is better for precision?
  13. The most energy is liberated from ATP in the presence of what? What is this process called? Where in the cell does it occur?
  14. What process is it in which glucose is broken down to pyruvic acid in the cytoplasm? In the absence of oxygen, pyruvic acid is broken down to what? What is this process called?
  15. The process of smooth muscle contraction from coordinated contraction of 2 muscle layers is what?