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it;s

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Artificial heart design. I can identify the different heart valves.

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This shows the two chambers of the heart.

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I can identify the four different valves. The limits of this heart are that you can only last a certain number of days. Each time that this heart has been tested the results have been better. This heart has been tested on animals and humans. The greatest result is someone living up to 512 days in 2011.

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1) I can identify the inflow and outflow valves
2) this is currently being used in humans, but it is too big and heavy for many people