Cardiac Output - created from Mind Map

Seite 1

amount of blood ejected by ventricle each minute

Stroke Volume

Heart Rate

CO = SV x HR

amount of blood ejected by ventricle during each contraction

SV = EDV - ESV

Ejection Fraction

End Diastolic Volume (EDV)

End Systolic Volume (ESV)

Vol. of blood in the ventricles at end of diastole

Filling Time

Venous Return

Vol. of blood in the ventricles at end of systole

Preload

Contractility

Afterload

Degree of stretching of cardiac muscle

BUT, excess stretching decrease amt of actin-myosin coupling, reducing force of contraction

Preload ∝ EDV ∝ SV

Amt. of force produced by ventricle

Resistance in blood vessel

Percentage of EDV that is pumped out during each cycle

SV/EDV ~ 60%