Lecture 2 The Neuron

Lecture 2 The Neuron - Figure 5-35 Table 8-2 Na + Cl-K +...

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Chapters Five and Eight Lecture 2 The Neuron
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Figure 8-2 THE NEURON: Dendrites Soma Axon Synapse
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Figure 8-3 - Overview
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Figure 8-5 – Overview (1 of 3) Glial Cells
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Figure 8-6, b–c
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Charge – ions (Na + , K + , Ca ++ , Cl - ) Current – ions/sec (into or out of cell) Voltage (Potential) – energy to move charge Conductance (1/Resistance) –ease of moving charge across membrane Electrical Terms mV ions ions
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Voltage of a Neuron Excitation Inhibition Resting Voltage
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Potential of a Neuron Depolarization Hyperpolarization Resting Voltage Na + Cl - K +
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Figure 5-37
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Figure 5-33
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Figure 5-16 Ion Concentrations Out of Equilibrium
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Figure 5-32 - Overview
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Figure 5-34 - Overview
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Unformatted text preview: Figure 5-35 Table 8-2 Na + Cl-K + +60 mV-63 mV-90 mV Equilibrium Potentials for Key Ions For a Neuron Resting at -60 mV Nernst Equation Electrochemical Equilibrium Voltage = (RT/nF) log e (C out /C in ) R = gas constant T = temperature F = Faraday Constant N = valence Cout = concentration of ion outside cell Cin = concentration of ion inside cell Nernst Equation of Equilibrium Potential Equilibrium Voltage = 61 log [Na outside / Na inside ] Equilibrium Voltage = 61 log [K outside / K inside ] Equilibrium Voltage = -61 log [Cl outside / Cl inside ] Electrochemical Equilibrium...
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Lecture 2 The Neuron - Figure 5-35 Table 8-2 Na + Cl-K +...

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