Heart Rules (Vol & Pressure

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6 Terms

1
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Heart Fills

Volume increases (Volume ↑) as blood enters

2
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Heart Fills

Pressure remains low (Pressure ↓) because the ventricular walls are relaxed

3
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Heart Squeezes

Volume stays constant (Volume = iso / unchanged) because all valves are completely closed.

4
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Heart Squeezes

Pressure sharply rises (Pressure ↑) as the ventricular muscle contracts against closed valves.

5
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Heart Empties

Volume decreases (Volume ↓) as blood is ejected out of the ventricles into the arteries

6
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Heart Empties

Pressure goes from High to Low (Pressure Hi → Lo) starting very high to push blood out and then dropping as blood leaves