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Page 2. Goals. • To understand the ionic basis of the pacemaker potential and the action potential in a cardiac autorhythmic muscle cell.
Typology: Lecture notes
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Graphics are used with permission of: adam.com (http://www.adam.com/) Benjamin Cummings Publishing Co (http://www.awl.com/bc)
** Now is a good time to go to quiz questions 3 and 4:
** You may repeat the animation again if you wish by click ing on the autorhythmic cell again.
Notes on Quiz Questions: Quiz Question #1. Membrane Potential
Quiz Question #2a. Pacemaker Potential in Autorhythmic Cell
Quiz Question #2b. Depolarization in Autorhythmic Cell
Quiz Question #2c. Repolarization in Autorhythmic Cell
Quiz Question #3. Gap Junction
Quiz Question #4a. Depolarization in Contractile Cell
Quiz Question #4b. Plateau in Contractile Cell
Quiz Question #4c. Repolarization in Contractile Cell
Study Questions on the Cardiac Action Potential:
Answers to Questions on the Cardiac Action Potential: