BRAINCAKEControlling the Heart Rate
Heart rate must change to match the body's demands. During exercise, muscles respire faster, so they need more oxygen and glucose and produce more carbon dioxide and heat. The heart must pump more blood to supply them.
The volume of blood pumped by one ventricle in one minute is the cardiac output:
cardiac output = heart rate × stroke volume
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More in Homeostasis
- Nervous Control of the Heart
- Baroreceptors
- Chemoreceptors
- Hormonal Control of the Heart
- Additional Responses
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- Osmoregulation
- Osmoregulation in Mammals
All 41 lessons in Homeostasis · All Edexcel A-level Biology topics