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06_moreBrain - PSY 101 General Psychology The Brain II Let's go over the AP again Resting potential animation

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PSY 101: General Psychology The Brain II Slide 2 • Let’s go over the AP again… • Resting potential animation: • http://bcs.whfreeman.com/thelifewire/cont ent/chp44/4402001.html
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Slide 3 http://bcs.whfreeman.com/thelifewire/co ntent/chp44/4402002.html Action potential animation Slide 4
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Slide 5 Saltatory conduction (note, not in the textbook) • Information travels faster in myelinated axons. • Nodes of Ranvier are breaks in the insulation sheet. Action potentials “jump” from one node to the next. Slide 6
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Slide 7 Slide 8 Figure 3.8 The synapse is the junction of the presynaptic (message- sending) cell and the postsynaptic (message-receiving) cell. At the end of the presynaptic axon is the terminal bouton (or button), which contains many molecules of the neurotransmitter, ready for release. Synapse
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Slide 9 Slide 10 http://bcs.whfreeman.com/thelifewire/conte nt/chp44/4402003.html synapse animation
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Slide 11 • Some synapses are inhibitory: they cause the receiving neuron to hyperpolarize
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This note was uploaded on 04/07/2008 for the course PSY 101 taught by Professor Gauthier during the Spring '08 term at Vanderbilt.

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06_moreBrain - PSY 101 General Psychology The Brain II Let's go over the AP again Resting potential animation

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