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The Heart, Part 2 - Heart Throbs: Crash Course Anatomy & Physiology #26 Teacherflix 2 Views • 2 years ago

Today we're talking about the heart and heartthrobs -- both literal and those of the televised variety. Hank explains how your heart’s pacemaker cells use leaky membranes to generate their own action potentials, and how the resulting electricity travels through the cardiac conduction pathway from SA Node to Purkinje fibers, allowing your heart to contract. He's also going to make you better able to spot inaccuracies in medical dramas by explaining how defibrillators work to reset the rhythm of your heart.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!

Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ

Chapters:
Introduction: Cardiac Arrest 00:00
Cardiac Muscle Tissue Structure 1:24
Pacemaker Cells - The Brain of Your Heart 2:49
The Intrinsic Cardiac Conduction System 3:56
How Defbrilators Work 6:46
Review 8:33
Credits 9:07

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The Expert Myth Teacherflix 4 Views • 7 months ago

Which experts have real expertise? This video is sponsored by Brilliant. The first 200 people to sign up via https://brilliant.org/veritasium get 20% off a yearly subscription.

Thanks to https://www.chess24.com/ and Chessable for the clip of Magnus.

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Chase, W. G., & Simon, H. A. (1973). Perception in chess. Cognitive psychology, 4(1), 55-81. – https://ve42.co/chess1

Calderwood, R., Klein, G. A., & Crandall, B. W. (1988). Time pressure, skill, and move quality in chess. The American Journal of Psychology, 481-493. – https://ve42.co/chess2

Hogarth, R. M., Lejarraga, T., & Soyer, E. (2015). The two settings of kind and wicked learning environments. Current Directions in Psychological Science, 24(5), 379-385. – https://ve42.co/Hogarth

Ægisdóttir, S., White, M. J., Spengler, P. M., Maugherman, A. S., Anderson, L. A., Cook, R. S., ... & Rush, J. D. (2006). The meta-analysis of clinical judgment project: Fifty-six years of accumulated research on clinical versus statistical prediction. The Counseling Psychologist, 34(3), 341-382. – https://ve42.co/anderson1

Ericsson, K. A. (2015). Acquisition and maintenance of medical expertise: a perspective from the expert-performance approach with deliberate practice. Academic Medicine, 90(11), 1471-1486. – https://ve42.co/anderson2

Goldberg, S. B., Rousmaniere, T., Miller, S. D., Whipple, J., Nielsen, S. L., Hoyt, W. T., & Wampold, B. E. (2016). Do psychotherapists improve with time and experience? A longitudinal analysis of outcomes in a clinical setting. Journal of Counseling Psychology, 63(1), 1. – https://ve42.co/goldberg1

Ericsson, K. A., Krampe, R. T., & Tesch-Römer, C. (1993). The role of deliberate practice in the acquisition of expert performance. Psychological Review, 100(3), 363. – https://ve42.co/anderson3

Egan, D. E., & Schwartz, B. J. (1979). Chunking in recall of symbolic drawings. Memory & Cognition, 7(2), 149-158. – https://ve42.co/chunking1

Tetlock, P. E. (2017). Expert political judgment. In Expert Political Judgment. Princeton University Press. – https://ve42.co/Tetlock

Melton, R. S. (1952). A comparison of clinical and actuarial methods of prediction with an assessment of the relative accuracy of different clinicians. Unpublished Ph.D. thesis, University of Minnesota.

Meehl, E. P. (1954). Clinical versus Statistical Prediction: A Theoretical Analysis and a Review of the Evidence. University of Minnesota Press. – https://ve42.co/Meehl1954

Kahneman, D. (2011). Thinking, fast and slow. Farrar, Straus and Giroux. – https://ve42.co/Kahneman

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Written by Derek Muller and Petr Lebedev
Animation by Ivy Tello and Fabio Albertelli
Filmed by Derek Muller and Raquel Nuno
Additional video/photos supplied by Getty Images
Music from Epidemic Sound (https://ve42.co/music)
Produced by Derek Muller, Petr Lebedev, and Emily Zhang