BSCI 353 Lecture Notes - Lecture 5: Reversal Potential, Electric Current, Membrane Potential
13 Sep 2016
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Nt/neurotransmitter receptor = input axon = output (but might be neurotransmitter) Astrocytes take up nt"s around glia nernst potential; to do with maintaining astrocyte"s ap. Electrical current positive particles tend to move towards negative potential flow of charge = electrical current batteries can drive current around wires connected to their terminals. Resistors current flows through resistor in proportion to voltage across it and in inverse proportion to resistance, in ohms. Rules two points in circuit without resistance = same voltage. Kirchoff"s law current flowing into any point in circuit has to equal current flowing out of it. Ohm"s law to find voltage changes (voltage drops) across each resistor. Kirchoff"s second law sum of all voltage drops across series of resistances is equal to sum of all battery voltages total resistance of two resistors in series is simply sum of individual resistances.
