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Unformatted text preview: c. Normal Activation c.i. By PSP’s at synapses c.ii. Electrode pass III) AP Propagation a. Active regeneration b. 48-10 IV)AP Refractory Period , Prevents backfiring a. Absolute Refractory Period (1 millisecond) VG Na channels are still inactivated b. Relative Refractory Period (2-3 millisecond) b.i. VG Na channels still open V) Saltatory Conduction a. Big axons wrapped with insulation myelin a.i. Separated by “nodes” b. AP moves by “jumping” from node to node faster VI)Generated Potentials (GP’s) a. In sensory neurons b. Transduce physical stimulus c. Crayfish c.i. Stretch receptor c.i.1. Increases stretch on muscle increases length, measure changes in V(GP) c.ii. Information about intensity encoded as frequency of AP’s not amplitude...
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- Spring '11
- AP, vg na channels