Biology A-Level
sympathetic and parasympathetic pathways
What sympathetic and parasympathetic pathways means in Biology A-Level, as defined for AQA.
Definition of sympathetic and parasympathetic pathways
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Reference: AQA
Both are autonomic, so involuntary, and both converge on the same effector, the SAN, which is why the two branches act antagonistically.
Topics that use sympathetic and parasympathetic pathways
- Control of heart rate (A-level only) (AQA A-Level)
Related terms
- bundle of His
- chemoreceptors
- medulla oblongata
- sinoatrial node
- atrioventricular delay
- myogenic contraction
- pressure receptors
- Purkyne tissue
Using sympathetic and parasympathetic pathways in the exam
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