Wk2L2s(2) - Announcements Bisc 327 Intro Neuroscience...

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Announcements Bisc 327: Intro. Neuroscience Everyone Enrolled has been verified PRESENT Good Job!!! Probably won’t get to Clicker Quiz on First Two Readings and “Escape from Planet Soma” until Tuesday. Extra Credits: Due 1 week from day assigned, please e-mail to me with subject heading Bisc 327 ExtraCredit : your name Office Hours move to Monday 1:30-3:30 instead of 3-5. Next Monday is Labor day. Make an appointment for later in the week if you need to see me. Clickers are checked out for semester, no fee.
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Electrical Signals driven by Movements of Charged Ions Across the Neuron Membrane Neural Communication
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Ion Channels - Passive Ion Channels - Gated Ion Channels
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Two Forces Control the Movement of Ions Chemical Diffusion Electro-static Force
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Movement of Ions Changes Neuron States Membrane Potential- difference in voltage between the interior and exterior of a cell Resting Potential Graded Potential Excitation Inhibition Action Potential
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Outside cell Inside cell K+ Ion Concentrations at Rest -50 to -80 mV “Polarized” A - K+ Cl - Na+ Ca++ Ca++ Cl- Na+
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At rest, there is more_____ inside the cell than outside the cell .
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