Physical Education A-Level
Pacemaker activity
What Pacemaker activity means in Physical Education A-Level, as defined for AQA.
Definition of Pacemaker activity
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Reference: AQA
The sinoatrial node in the right atrium generates an electrical impulse that spreads across both atria, causing atrial systole.
Topics that use Pacemaker activity
- Cardiovascular system (AQA A-Level)
Related terms
- Affinity for oxygen
- Antagonistic action of the two divisions
- Anticipatory rise
- Autonomic control of heart rate
- Baroreceptors
- Bohr shift during exercise
- Cardiac output
- Cardiac output and oxygen uptake
Using Pacemaker activity in the exam
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