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5 Cards in this Set
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Membrane Potential
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difference in electrical charge between the inside and the outside of a cell
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Microelectrodes
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Intracellular electrodes (piece of machine used to test charge)
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Resting Membrane Potential
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-70 mV
potential inside the resting neuron is about 70 mV less than the outside (polarized) |
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Ions
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particles that are either positively or negatively charged
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How balance occurs?
Homogenous |
1. Random Motion- more likely to move down concentration gradient than up- move away from highly concentrated areas, and towards low concentrated areas
2. Electrostatic Pressure- accumulation tends to be dispersed by the repulsion among the like charges and attraction of opposite charges |
