Autonomic control of heart rate
What Autonomic control of heart rate means in Physical Education A-Level, as defined for AQA.
Definitions of Autonomic control of heart rate
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Reference: AQA
Sympathetic outflow to the sinoatrial node increases while parasympathetic (vagal) tone falls, following impulses from the cerebral cortex and limbic system to the medullary cardiovascular control centre.
The autonomic nervous system controls cardiac muscle without conscious input, and its two divisions have opposing effects on the heart.
Topics that use Autonomic control of heart rate
- Cardiovascular system (AQA A-Level)
Related terms
- Affinity for oxygen
- Antagonistic action of the two divisions
- Anticipatory rise
- Baroreceptors
- Bohr shift during exercise
- Cardiac output
- Cardiac output and oxygen uptake
- Cardiovascular adaptations to exercise
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