NERVOUS SYSTEM - BROPHY

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Across
  1. 6. transmitter removal that consists of enzymatic breakdown of the neurotransmitter
  2. 9. depolarization during an action potential is an example of a _______ feedback loop
  3. 10. the status that a neuron must achieve before a voltage-gated sodium channel can be deactivated
  4. 12. during this phase of an action potential sodium ions rush into a cell
  5. 14. the space between two neurons that can be electrical or chemical
  6. 15. this part of a neuron is where the nucleus is located
  7. 16. results in a more positive membrane polarization
  8. 17. equation that describes the equilibrium potential for a particular ion
  9. 19. channels that are always open, allow ions to flow freely, and are not gated
  10. 20. fibers that innervate skeletal muscles are part of this nervous system division
  11. 21. this portion of a neuron receives incoming information from distal neurons
  12. 23. proteins that make up gap junctions
  13. 25. pathway that refers stimulus information from sensory receptors to the CNS
Down
  1. 1. results in a more negative membrane polarization
  2. 2. portion of the ear consists of the oval window, cochlea, and vestibular apparatus
  3. 3. SSRIs like Zoloft work by blocking the re-uptake of this molecule
  4. 4. there are two types: absolute and relative
  5. 5. refers to a voltage-gated sodium channel that is closed and not capable of opening
  6. 7. this location on a neuron is where an action potential begins
  7. 8. this transmitter activates secondary messenger systems
  8. 11. this type of potential can vary in magnitude, is spread by passive current, and dies out over short distances
  9. 12. at this potential, neither sodium nor potassium ions are at their equilibrium
  10. 13. division of the peripheral nervous system that is associated with the fight/flight response
  11. 18. a component of a neuron that acts as insulation
  12. 22. describes when the synaptic output of one neuron is put onto many neurons
  13. 24. this ion enters the synaptic knob and causes neurotransmitter release via exocytosis