motor neur. skel. mus.
ANS, esp. parasympath.
n. basalis of Meynert
presynaptic modulator
O
myasthenia gravis
Alzheimer’s
CAT
acetyl CoA + choline
CH3-C-O-CH2-CH2-N+-(CH3)3 + CoA
acetylcholine
HO-
substan. nigra caudate n.
midbrain limbic system
Parkinson’s
drug addiction
schizophrenia
AAAD
TH
tyrosine + O2
L-DOPA
HO-
-CH2-CH2-NH2
dopamine
OH
HO-
sympathetic endings
locus coeruleus
DBH
dopamine
HO-
-CH-CH2-NH2
depression
norepinephrine
OH
HO-
adrenal medulla
(neurohormone)
PNMT
norepinephrine
HO-
-CH-CH2-NH-CH3
epinephrine
raphé n.
depression
TrH
AAAD
-CH2-CH2-NH2
tryptophan + O2
5-HTP
serotonin
N
 glutamate
major excitatory transmitter
in brain
stroke
GAD
major inhibitory transmitter
in brain
epilepsy
gamma-amino butyric acid (GABA)
glutamate
 glycine
major inhibitory transmitter
in spinal cord