electrophysiology- exam one

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10 Terms

1
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equilibrium potential

zero net flw

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electrical current flows

positive to negative

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Na naturally

conc flows into cell, so elec flows out

POSITIVE 

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Potassium (K) naturall

conc flows out of cell, so current flows in

NEGATIVE BANANAS

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depolarization

become more positive, Sodium / NA

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repolarization

become more negative, potassium / k

NEGATIVE BANANAS

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graded potential types 

chemical (ach), voltage, pressure

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voltage graded locations

neural axons, skeletal muscle, sarcolemma, cardiac

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contiguous propagation

unmyelinated, slow

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saltatory propagation

myelinated, 50x faster