Here are some videos I have put together for physiologic and pathophysiologic concepts. These videos are a work in progress.

You can find all of the videos on YouTube 

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Arachidonic Acid Metabolic Pathways

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Mechanisms of Hemostasis - Blood Clotting

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Mechanisms of Potassium Regulation

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Tonicity and Water Movement

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HPA Axis and the Stress Response

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Cell-derived Mediators of Inflammation