8. Sequence of neurones Receptors (sense organ) sensory neurone Intermediate/relay neurone motor neurone effector
9. - conducts impulses away from cell body - insulating layer - provides nourishment for fibre 5 - conducts impulses towards cell body 1 2 3 4 - speeds up transmission of impulses along fibre - junction between 2 neurones; impulses transmitted by chemical means (neurotransmitters) - where end branch of axon comes in contact with muscle fibre