Biology Unit 1

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The Nervous System

- Information recieved from receptors passes along neurones to nerves in the brain

- Nerve impulses are electrical signals and travel along the neurones to the brain at a high speed

- Receptors detect the stimuli eg. light, sound and pain.

Sensory neurones transmit the nerve impulses from the CNS to the effectors which bring about a response

- Effectors include muscles or glands

The Central Nervous System includes the CNS itself, the brain and the spinal cord which work together to create a

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