Biology A-Level
atrioventricular delay
What atrioventricular delay means in Biology A-Level, as defined for AQA.
Definition of atrioventricular delay
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Reference: AQA
The AVN delays the wave for approximately 0.1 seconds, allowing atria to empty and ventricles to fill.
Topics that use atrioventricular delay
- Control of heart rate (A-level only) (AQA A-Level)
Related terms
- bundle of His
- chemoreceptors
- medulla oblongata
- sinoatrial node
- sympathetic and parasympathetic pathways
- myogenic contraction
- pressure receptors
- Purkyne tissue
Using atrioventricular delay in the exam
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