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AP Mechanism – Lab #11

This lab report presents figures illustrating neuronal action potentials through voltage, current, and conductance plots. It includes detailed traces from an action potential recorded under current clamp conditions, highlighting key phases: resting membrane voltage at -65mV, initial depolarization to -50mV, rising phase peaking at 0mV, and a depolarization peak of +50mV. The analysis also covers the falling phase returning to 0mV, hyperpolarization overshoot to -75mV, and the restoration to resting potential. The steady-state Hodgkin-Huxley gate voltage dependence is also depicted.

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AP Mechanism – Lab #11

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  1. AP Mechanism – Lab #11 Figures from Neurons in Action 2 traces and voltage clamp data Each page shows voltage, current, and conductance plots from an action potential under current clamp, together with a steady-state HH-gate voltage dependence plot.

  2. Rest Vm = -65mV

  3. Initial Depolarization Vm = -50mV

  4. Rising Phase Vm = 0mV

  5. Depolarization Peak Vm = +50mV

  6. Falling Phase Vm = 0mV

  7. Hyperpolarization Overshoot Peak Vm = -75mV

  8. Rest Vm = -65mV

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