E.4a Synapses

EPSPs: excitatory post-synaptic potentials

  • post-synaptic neurons have receptor proteins specific to excitatory neurotransmitters
  • binding neurotransmitter makes post-synaptic membrane permeable to Na+, which moves across post-synaptic membrane
  • causing depolarization of the post-synaptic membrane
  • enzymes catabolize neurotransmitters
    • monoamine oxidase catabolizes norepinephrine
    • acetylcholine esterase catabolizes acetylcholine
    • examples of excitatory neurotransmitters
      • epinephrine
      • dopamine
      • serotonin

One thought on “E.4a Synapses

  1. Dave Ferguson says:

    Grade 3 Limited achievement against most of the objectives, or clear difficulties in some areas. The student demonstrates a limited understanding of the required knowledge and skills and is only able to apply them fully in normal situations with support.

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