Practice Lab Practical on Neurophysiology
  1. Na+ concentration inside the neuron is ____________ Na+ outside the neuron.
  2. K+ concentration inside the neuron is ____________ K+ outside the neuron.
  3. Ca+ concentration inside the neuron is ____________ Ca+ outside the neuron.
  4. Cl- concentration inside the neuron is ____________ Cl- outside the neuron.
  5. Sodium influx will cause the membrane potential of a neuron to...
  6. Potassium efflux will cause the membrane potential of a neuron to...
  7. Chloride influx will cause the membrane potential of a neuron to...
  8. As a graded potential spreads away from its site of origin, the magnitude of its depolarization will...
  9. Voltage-gated channels are primarily found on the:
    1. Dendrites
    2. Soma
    3. Axon
    4. Schwann cells
  10. How do neurotransmitters cross the synaptic cleft?
  11. The arrival of an action potential at an axon terminal will cause intracellular calcium levels to...
  12. The arrival of an action potential at an axon terminal will cause the number of synaptic vesicles in the axon terminal to...
  13. The arrival of an action potential at an axon terminal will cause the number of phospholipids in the axon terminal cell membrane to...

  14. In the above picture, in the time period labeled A:
    1. Sodium channels are...
    2. Is the membrane depolarizing or repolarizing?
  15. In the above picture, in the time period labeled B:
    1. Potassium channels are...
    2. Sodium channels are...
    3. Is the membrane depolarizing or repolarizing?
  16. In the above picture, identify the time period labeled C.


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