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Cardiac Output (CO=HRxSV) (Heart Rate (Autonomic Nervous System…
Cardiac Output (CO=HRxSV)
Heart Rate
Adrenal Medulla
Pacemaker Rhythm (Spontaneous)
Autonomic Nervous System
Parasympathetic
Sympathetic
Temperature
Baroreceptors, chemoreceptors, and higher brain centers
Stroke Volume (SV = EDV-ESV)
End Systolic Volume (Ventricular Emptying)
contractility
Ca++
Voltage regulated Ca++ channels
Ca++ troponin
Cyclic AMP regulated Ca++ channels
Intracellular Ca++
increase Ca++ = more + faster contraction
Ca++ induced Ca++ release
systolic arterial pressure (load)
End Diastolic Volume (Ventricular Filling)
duration of diastole
diastolic compliance (distensibility of ventricles)
volume of flow during diastole (venus return)