A cardiac cycle is the complete sequence to make one complete contraction. Factors that influence the cardiac cycle include the increase and decrease in heart rate, change of posture, parasympathetic nervous system activity and sympathetic nervous system activity.
Peripheral resistance and cardiac output
cardiac output :)
Cardiac output (CO) is determined by the heart rate (HR) and the volume of blood pumped by each beat (stroke volume - SV). Mathematically, cardiac output can be represented by the equation: CO = HR x SV As such, if total cardiac output falls as a result of decreased stroke volume, the heart rate can increase to keep the total cardiac output normal, to a certain extent. Stroke volume is more complicated; it is determined by many different factors, including preload, afterload, competence of the atrioventricular valves, ventricular cavity size, and the strength of the squeeze of the cardiac muscle, amongst others. Any change in one of these factors requires a compensation in one or more of the others to maintain cardiac output.
cardiac output
10 liters
cardiac output
cardiac output is heart rate multiplied by stroke volume,
its not cardiac rest, its cardiac ARREST. which is a heart attack.
Cardiac output is the volume of blood the heart pumps within one minute. Cardiac output (CO) is equal to the stroke volume (SV) of the heart multiplied by the heart rate (HR). Thus, cardiac output is given by the equation: CO=HR X SV.
Both, peripheral resistance decreases and cardiac output increases.
Cardiac output = heart rate X stroke volume Thus, if the heart rate decreases so will the cardiac output, assuming the stroke volume is constant.
Cardiac output is the total volume of blood that is pumped by the heart per minute. When you exercise, there is a greater demand for oxygen, which is carried in your blood, thus your cardiac output increases.