The nervous system

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  • The nervous system
    • The nervous system- coordinates the actions of the body through electrical impulses
    • The peripheral nervous system consists of the neurones that carry impulses into and out of the CNS . The peripheral nervous system contains sensory and motor neurones.
      • Sensory neurones- carry impulses from receptors to CNS
      • Motor neurones carry impulses from the CNS to effector cells
        • SOMATIC- impulse carried from CNS to skeletal muscles under control
          • AUTONOMIC- from CNS to cardiac muscle (not under voluntary control)
    • The CNS consists of the brain and spinal chord. Made up of grey matter ( non myelinated nerve cells) and white matter (myelinated nerve cells)


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