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Where Does That Ion Go? A Video of the Cardiomyocyte Action Potential: Part 2

Students often have great difficulty understanding cardiac physiology, particularly the cardiomyocyte action potential. With multiple ions moving through different channels at various points in time, it can be challenging to present the material in a cohesive fashion. This led to the creation of multimedia videos that examine the physiology of this complex process. The first video begins with a description of the resting membrane potential of a cardiomyocyte (a cardiac muscle cell). Topics include the sodium-potassium pump, calcium pump, and leak channels. The second video continues on to examine the phases of an action potential, including depolarization, the plateau, and repolarization. Current research shows that these videos have improved student scores on examinations, particularly of at-risk students, and have been favorably evaluated by students.

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Resource Type: Video
Audience Level: Undergraduate lower division (Grades 13-14), Undergraduate upper division (Grades 15-16), Graduate, Professional (degree program)

Author and Copyright

Authors and Editors: PhD Cynthia J Miller of University of Louisville Physiology & Biophysics
Publisher: University of Louisville Physiology & Biophysics
Format: audio/mpeg3
Copyright and other restrictions: No
Cost: No


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