Nerves and hormones biology (2)

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  • sensory neurones carry signals from receptors to the spinal cord and brain
  • relayneurones carry messages from one part of the CNS to another
  • motor neurones carry signals from the CNS to effectors.

synapes is where two neurones meet there is a tiny gap called a synapse.

What happens when they meet?:

Signals cross this gap using

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