Notes: 1:Clickable 2:Unclickable Tyrosine L-DOPA Tyrosine L-DOPA Dopamine Dopamine 3-OMD COMT TH Presynaptic Terminalfrom the Substantia Nigra Postsynaptic Terminalin the Striatum DopamineTransporter SynapticVesicle DDC DDC Astrocyte Blood-brainBarrier Glial Cell COMT COMT P {{ board.text }} {{ board.text }} {{ board.text1 }} {{ board.text2 }} {{ board.text }} {{ group.title }} {{ text.text }}