Homework+_7+Spring+11-1

Homework+_7+Spring+11-1 - BME6360 Neural Engineering...

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BME6360 Assignment #7 Spring 2011 Neural Engineering Prof. Wheeler 1. You may use a hand held calculator or Matlab to solve the following problem. The Alien Nerve Cell Problem: Neptunians have just landed on Earth. Immediately Drs. Hodgkiss and Huxtable obtain tissue samples and determine the ionic concentrations inside and outside the cells. They have instructed you to calculate the resting potential. Ion Intracellular Concentration Extracellular Concentration Relative Conductance K+ 40 100 1 Se-- 17 40 2 Ca++ 200 40 15 Despite the changes in ions, Drs. H & H found that the mechanism of the Neptunian action potential was virtually identical to that of Earthlings. Identify the Earthling ions which correspond to each of the Neptunian ions. 2. Use the Hodgkin-Huxley simulator on Matlab on the problems below. If you are ambitious, you may wish to find software from sites on the web and do the same problems. A. Basic Properties Demonstrate the simulation of the action potential with the course software. Plot the time course of the sodium and potassium currents. Next, plot the time course of the sodium and potassium conductances. Then plot the time course of the sodium and potassium activation and inactivation variables. You should also find the responses to maintained depolarizing and hyperpolarizing
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This note was uploaded on 01/23/2012 for the course EEL 6502 taught by Professor Principe during the Spring '08 term at University of Florida.

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Homework+_7+Spring+11-1 - BME6360 Neural Engineering...

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