04-COGS11-Understanding the Action Potential

04-COGS11-Understand - http/highered.mcgraw ‐ hill.com/olc/dl/120068/bio03.swf 26 14 The Action Potential ‐ Animation

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1/11/2010 1 Understanding the Action Potential Mary ET Boyle, Ph.D. Department of Cognitive Science
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1/11/2010 8 One can measure the electrical charge across a membrane of an axon by using a voltmeter. 16 A light bulb detecting the charge across the terminals of a battery.
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1/11/2010 9 17 Notice the drop in the membrane potential voltage. Resting potential 18
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1/11/2010 12 cation anion _ + OUTSIDE OF CELL K + Na + Cl ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ INSIDE OF CELL Cl Na + ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ K + A
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1/11/2010 13 25 Na K Pump Animation
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Unformatted text preview: http://highered.mcgraw ‐ hill.com/olc/dl/120068/bio03.swf 26 1/11/2010 14 The Action Potential ‐ Animation http://bcs.whfreeman.com/thelifewire/content/chp44/4402s.swf 1/11/2010 15 Na + Opens Na + becomes Refractory K + continues to leave cell. Causing the K + Opens membrane potential to return to the resting potential. K + channels l close. Na + channels reset, ready for action again! Extra K + outside diffuses away. Voltage activated channels. .. 1/11/2010 16 Postsynaptic potentials. .. Spatial Summation. .. 1/11/2010 17 33 Temporal summation. .. 1/11/2010 18 Postsynaptic Inhibition. .. Presynaptic Inhibition. .. 1/11/2010 19 Non ‐ directed neurotransmitter release. .. Ionotropic Receptors. .. 1/11/2010 20 Metabotropic receptors...
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This note was uploaded on 03/02/2010 for the course COGSCI 11 taught by Professor Maryb. during the Spring '10 term at UCSD.

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04-COGS11-Understand - http/highered.mcgraw ‐ hill.com/olc/dl/120068/bio03.swf 26 14 The Action Potential ‐ Animation

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