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Biopsychology, : - Coggle Diagram

- - - - Sympathetic nervous system (Fight or flight)
      - Parasympathetic nervous system
      - Governs vital functions in body (eg. breathing, heart rate, and digestion)
    - - Governs muscle movement and receives information from sensory receptors
- - - - Cell body: Includes a nucleus (containing genetic material of the cell). Dendrites protrude from the cell body carrying nerve impulses
      - Axon: Carries impulses from the cell body. Covered in a fatty layer called myelin sheath that protects axon. The sheath is segmented by gaps called nodes of Ranvier which helps speed up transmission of the impulse.
      - Terminal buttons: Communicate with the next neuron in the chain across the synapse
- - - - Summation:
        The excitatory and inhibitory effects are summed to determine
        the net effect.
        The more excited the neuron is and the less inhibited it is the more likely it is to "fire" i.e. cause an action potential
  - - - Synaptic vesicles:
        Contain neurotransmitters
      - Postsynaptic receptor sites:
        Reabsorb neurotransmitters from the synapse
      - Presynaptic terminal:
        Contains and releases the neurotransmitters
        from the synaptic vesicles