AQA GCSE Combined Science Trilogy · 8464
Paper 2
Revise: Nervous Coordination and Reflex ArcsThe signal passes across a synapse to a relay neurone, then across another synapse to a motor neurone.
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GCSE Combined Science · key term
A junction between neurones containing a tiny gap across which neurotransmitters carry the signal.
Used by AQA and Edexcel
Paper 2
Revise: Nervous Coordination and Reflex ArcsThe signal passes across a synapse to a relay neurone, then across another synapse to a motor neurone.
Paper 1, Paper 2
A junction between neurones containing a tiny gap across which neurotransmitters transfer the signal.
Revise: The Nervous SystemA synapse is a junction containing a tiny gap between them. An electrical impulse cannot simply travel across this gap, so the signal is transferred chemically.
Describe information travelling along neurones as electrical impulses. Across a synapse, the signal is carried by chemicals called neurotransmitters.
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