HW_1_Statement - BME 365R Quantitative Physiology Homework...

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BME 365R Quantitative Physiology Homework 1 Due September 9, 2009; 12:30PM 1. Review the article on Induced Hypothermia posted on Blackboard in the HW1 folder. A. Select three physiological systems mentioned in the section “physiologic effects of IH” and identify at least two effects of induced hypothermia for that system (you should have 6 effects). B. Review the section entitled “Clinical Applications of IH” and select three clinical applications of IH and indicate whether IH is generally accepted, somewhat accepted, controversial or not generally accepted and provide a brief explanation supporting your answer in each case. 2. In the process of action potential propagation, voltage gated Na channels open when the membrane potential rises about 20 mV above the rest potential; this potential is called the "threshold". Subsequent to reaching the threshold, about 5 x 10 8 Na + ions rush into the cell over a time period of 0.5 ms; A. What is the average value of the Na + ion current in MS units into the cell over the 0.5ms? B. If the average electrical potential across the membrane (inner potential less outer
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This note was uploaded on 12/13/2011 for the course BME 365R taught by Professor Rylander during the Spring '09 term at University of Texas.

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HW_1_Statement - BME 365R Quantitative Physiology Homework...

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