Nervous System

A sumary of the nervous system giving explanations of the functions within the nervous system. 

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  • The Nervous System
    • Nerve Impulses
      • Electrical Signals that travel along neurons
        • nerve impulses that travel at high speeds.
    • Receptors
      • A function which detects light, sound, changes in position, chemicals, pressure, touch and temperature.
    • Sensory Neurones
      • Transmit Nerve impulses from the receptors to the CNS to bring about a response.
    • Motor Neurones
      • Transmit nerve impulses from the CNS to effectors, to bring about a response.
    • Effectors
      • Muscles or glands
    • (CNS) Central Nervous System
      • Brain and Spinal Cord
    • (PNS) Peripheral Nervous System
      • Consists of nerves connecting the CNS to the rest of the body. (eg. the optic nerve and the nerve


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