PSL301H1 Lecture Notes - Lecture 2: Cardiac Output, Sodium-Potassium Alloy, Arteriole
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PSL301H1 Full Course Notes
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Esv is the smallest volume in the ventricle. Edv is the largest ventricular volume, its when the ventricle is the (cid:373)ost full. Str0ke (cid:448)olu(cid:373)e is the a(cid:373)ou(cid:374)t of (cid:271)lood that"s pu(cid:373)ped out e(cid:448)ery ti(cid:373)e the heart (cid:271)eats. You can influence co by either hr or sv. The stretch determines the force of the heart. The amount of blood in the heart determines how much blood is pumped out. If we will the heart more, more is pumped out. If we are sick, we move down the curve, if we exercise, we will move up it. Preload is the volume of blod that comes into the heart. Aferload is the pressure the ventricles must work against. If we wan to push blood out, the ventricles have to go against a pressure to push the blood out. Afterload depends on how much resistance there is in the blood vessels.
