How do heart valves function?
3:05
YouTubeMatch Health
How do heart valves function?
How do heart valves function? The heart has four valves that open as one-way gates to allow blood to flow forward through the heart chambers and on to the body. The valves close to prevent blood from flowing backward into the chambers. If you are interested in licensing this video or the heart valve embedded animations, please contact us at www ...
387.7K viewsMar 17, 2017
Control Valve Basics
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U.S. Border Patrol on Instagram: "ONE WAY TRIPS ✈️ Since January, we’ve had over 600 deportation flights. The border is closed to illegal entrants. Enter illegally, and you WILL be deported."
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U.S. Border Patrol on Instagram: "ONE WAY TRIPS ✈️ Since January, we’ve had over 600 deportation flights. The border is closed to illegal entrants. Enter illegally, and you WILL be deported."
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