PHYSIOLOGY SEAL TIME 6/7

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Across
  1. 3. The repeating unit of muscle contraction in striated muscle
  2. 5. Division of the ANS that promotes digestion and rest
  3. 9. Protein that binds calcium to uncover actin binding sites
  4. 12. A single motor neuron and all the muscle fibers it innervates
  5. 14. The membrane potential becomes less negative as sodium enters the cell
  6. 15. Division of the autonomic nervous system activated during stress
Down
  1. 1. Enzyme that breaks down acetylcholine in the synaptic cleft
  2. 2. Type of conduction where action potentials jump between nodes
  3. 4. Insulating layer that speeds up action potential conduction
  4. 6. Minimum membrane potential needed to trigger an action potential
  5. 7. Blocks ACh release by preventing vesicle fusion at the presynaptic membrane
  6. 8. Thick filament that pulls actin during muscle contraction
  7. 10. Type of ACh receptor located on skeletal muscle fibers
  8. 11. Receptor that monitors muscle tension and prevents excessive force
  9. 13. Neurotransmitter released at all neuromuscular junctions