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Unformatted text preview: Today (10/04), lecture #11 1) Circuit model of a nerve action potential 2) HodgkinHuxley model of a nerve action potential Thursday (10/06), Exam #1 1) Don’t freak out. 2) I will not try to trick you. 3) But study hard! 4) Do your best. Announcements 1) The formula sheet for the exam will be posted on the files section of Blackboard. 2) A document that explains HW#3 will be posted on the files section of Blackboard. Answers for homework #3 have been posted on the Blackboard site. A supplemental file related to homework #3 will also be available on the Blackboard site. Take a look at it – it may help your understanding of the answers for homework #3. It may also help you to answer a few questions on the exam. Exam #1 is Thursday (October 6 th ). Bring your calculator . Material to study: 1) All lecture notes (lectures 111). Study the slides and the notes that were written on the board during class. 2) All concepts addressed in homework sets 1, 2, and 3. Transmembrane potential as a fraction of action potential amplitude Ratio of current delivered to threshold current Nonlinear relationship between transmembrane potential and stimulus strength . General explanation of nonlinear relationship : 1) permeabilities are voltage dependent; 2) Goldman’s equation. Transmembrane potential as a fraction of action potential amplitude Action Potential Subthreshold Response All or none response of a nerve cell membrane. Sir Alan Lloyd Hodgkin Sir Andrew Huxley Alan Hodgkin and Andrew Huxley •Developed the first quantitative model of a nerve action potential (1952).potential (1952)....
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This note was uploaded on 11/14/2011 for the course ECE 3820 taught by Professor Wang during the Fall '11 term at GWU.
 Fall '11
 Wang

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