Classification of the neurotransmitters:

Classification of the neurotransmitters:

Classification of the neurotransmitters:

Biogenic amines:   

       I.            Acetylcholine – excitatory   

      II.            Nor epinephrine- excitatory 

     III.            Dopamine - excitatory

      IV.            Serotonin – both excitatory and inhibitory

Amino acids :   

        I.            GABA – inhibitory 

       II.            Glycine – inhibitory 

      III.            Glutamate- excitatory

Neuropeptides : 

     I.            Substance P - excitatory 

    II.            Met - enkephalin