Neurotransmitters

• Neurotransmitters are chemical messengers that your body can’t function without, their job is to carry Chemical signals (messages) from one neurone (nerve cell) to the next target cell
• High dopamine levels can lead to symptoms of schizophrenia, some drugs can block dopamine activity and this he's been found to reduce schizophrenic symptoms. This is under assumption 2
• Dopamine is associated with rewards and schizophrenia.

  Serotonin is associated with arousal, happiness and depression.

  Adrenaline is associated with arousal/happiness.

  This is under assumption 2
• Last steps of neurotransmis

  4. The electrical impulse triggers the presynaptic vesicles of the pre-synaptic neuron to release neurotransmitters (a chemical messenger).

  5. These chemical messengers diffuse across the synaptic cleft and bind to specialised receptor sites on the post synaptic neuron.
• Name the parts of neurotransmitters 


  1. dendrites
  2. cell body
  3. axon
  4. axon terminal
• Name the order of what happens in the synapse 


  1. axon terminal
  2. presynaptic vesicle
  3. synapse
  4. neurotransmitter
  5. Receptor molecules
  6. Dendrite receiving the neutron
• What can lack of serotonin cause ?


  Depression
• What can high levels of dopamine cause?


  schizophrenia
• Synaptic transmission isthe process by which one neuron communicates with another. Information is passed down the axon of the neuron as an electrical impulse