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GCSE Biology · key term
A neurone that carries electrical impulses from the central nervous system to an effector.
Used by AQA, Edexcel and OCR
Specification 4.5.2.1 · Paper 2
Revise: Nervous System Structure & CoordinationImpulses travel away from the CNS along motor neurones to effectors. An effector may be a muscle, which contracts, or a gland, which secretes a substance such as a hormone.
A nerve cell that carries electrical impulses from the central nervous system to an effector.
In a pathway question, name the sensory neurone carrying impulses to the CNS and the motor neurone carrying impulses from the CNS to the effector.
Give the full pathway in order: stimulus → receptor → sensory neurone → relay neurone → motor neurone → effector → response.
When comparing neurones, state the direction of impulse travel: sensory neurones carry impulses to the CNS, whereas motor neurones carry impulses from the CNS.
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Specification 2.13, 2.14 · Paper 1
Revise: Neurones and SynapsesA motor neurone carries impulses from the CNS to an effector.
A neurone that carries an electrical impulse from the central nervous system to an effector.
Specification B3.1a, B3.1b, B3.1c · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Nervous system structureRelay neurones within the central nervous system can connect incoming sensory neurones to outgoing motor neurones. This pathway shows where each component fits; how the components coordinate a complete response is considered separately.
A nerve cell that carries electrical impulses from the central nervous system to an effector.
A nerve cell that carries impulses from the central nervous system to an effector.