bogdan_spaz

bogdan_spaz

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winter-iphone-wallpaper-2.jpg 750×1.334 pixeli

Winter is quickly approaching and you need to take the time to enjoy it!

Preload and Afterload

Preload is the stretch. The amount of volume being returned to the right side of the heart from systemic circulation. Afterload is the squeeze. The amount of resistance the left side of the heart has to overcome in order to eject blood.