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#R6043
Where Does That Ion Go? A Video of the Cardiomyocyte Action Potential: Part 1

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Description 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.
Type of Resource Video
Format Web Page - HTML
Technical Note Requires the Adobe Flash Players, available for free at: http://get.adobe.com/flashplayer/
Author
Cynthia Miller, University of Louisville
Grade/Age Levels Undergraduate lower division (Grades 13-14)
Undergraduate upper division (Grades 15-16)
Graduate
Professional (degree program)
Pedagogies
APS/ACDP
Medical Objectives
in Physiology
Biological membranes, solutes and solutions, Cardiac muscle, Electrophysiology of the heart
Learning Time <=1 hour
Language English
Type of Review Reviewed By Archive Board
Funding Source None
Keywords

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The concepts were described in a easy to understand format. Thank you!

David Prakash, University of Maryland, Baltimore


If students try to look at a specific slide, the captions are not synched to the slides and the audio. This can be very confusing and frustrating for the viewer.
Dexter Speck, University of Kentucky


Nice intro video that is clear. Might try linking 1 and 2 together.
Mike Wyss, UAB