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Instructional Video

Khan Academy: Preload and Afterload: Preload Stretches Out the Heart Cells

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Find out why stretching a heart cell in diastole affects how forcefully it contracts in systole. Rishi is a pediatric infectious disease physician and works at Khan Academy. [12:41]

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Concepts
blood pressure, myosin
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Additional Tags
actin, diastole, force of contraction, heart cell, heart physiology, preload, systole, systolic contraction, khan academy, preload stretches out the heart cells, preload and afterload
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Resource Details
Grade
9th - 10th
Subjects
Science
2 more...
Resource Type
Instructional Videos
Audiences
For Administrator Use
2 more...
Lexile Measures
0L