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PHYSIOLOGY 3 - Coggle Diagram
PHYSIOLOGY 3
CONTRACTILITY
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+ve Inotropic= ↑contractility , -ve Inotropic effect=↓ contractility
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PRELOAD(EDV)
Factors
Resistance from valves: Stenotic M & T=↓ preload , Stenotic P & A=↑
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Venous Compliance: stretchy ventricles=↑ Preload , Stiff ventricles=↓ Preload
Venous Pressure,↑ blood volume and venous return= ↑ preload.
Franklin Starling Law:
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Low EDV=↓ Sarcomere stretching , Too High=Prevents myosin and actin overlap>>↓ force of contraction
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+ve Inotropic= ↑contractility and SV , -ve Inotropic effect=↓ contractility & SV
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