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Regulation of Cardiac Output

Blood is pumped around the body to supply oxygen and remove CO2 from respiring tissues.

CARDIAC OUTPUT: The volume of blood pumped by the heart in one minute.
Cardiac output = Stroke volume X Heart rate

The stroke volume is the volume of blood pumped out…

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Increased temperature
Mechanical activity in muscles and joints is detected by sensory receptors in muscles, and impulses are sent to the control centre.

All these changes result in a higher rate.

There are also HORMONAL effects on the heart ­ the release of adrenaline into the bloodstream from the adrenal…


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