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because your muscles are working so much harder, they need more oxygen, and also produce more waste products. Your cardiac output increases so that the blood is pumped around the body faster to provide the oxygen required and remove any waste.
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∙ 13y ago
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What does cardiac output do if the heart rate decreases?
Cardiac output = heart rate X stroke volume Thus, if the heart rate decreases so will the cardiac output, assuming the stroke volume is constant.
What is cardic output?
Cardiac out put is the volume of blood pumped by the heart per minute. Cardiac output is a function of heart rate and stroke volume. The heart rate is simply the number of heart beats per minute. The stroke volume is the volume of blood, in milliliters pumped out of the heart with each beat. Increasing either heart rate or stroke volume increases cardiac output.
Determined by heart rate x stroke volume?
cardiac output
What hormone increases heart rate and force of contraction?
Cardiac output is defined by the equation HR (heart rate) x SV (stroke volume). Anything that increases either of these will increase the cardiac output. Increasing heart rate: exercise, anxiety, caffeine, amphetamines, cocaine, other medications Increasing stroke volume: certain medications (digoxin, etc), lower heart rates
Why do athletes have a higher cardiac output?
regular aerobic exercise strengthens heart muscles which increases stroke volume (the volume of blood ejected with each contraction). since cardiac output = stroke volume * heart rate, this ultimately increases cardiac output.
Which statement is correct about cardiac output?
cardiac output is heart rate multiplied by stroke volume,
What is the normal compensatory response to a decreased cardiac contractility often seen in myocardial infarction?
Increase in heart rate as Cardiac Output = Heart rate x Stroke volume. As SV will be decreased, HR increases to compensate.
What does heart rate and stroke volume determine?
cardiac output
What is the formula for calculating cardiac output?
CO=HRXSV, Where HR is heart rate and SV is stroke volume
What can decrease the cardiac output?
The cardiac output can be decreased by decreasing the force of contraction of the ventricular myocardium and decreasing the heart rate.
What is cardiac-output?
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.
Does the cardiac output equal heart rate multiplied by stroke volume?
Yes. CO = HR x SV CO - cardiac output HR - heart rate SV - stroke volume
