cholinergic neuron
a neuron that releass ACh as its NT
cholinergic receptor
a receptor that binds ACh
nicotinic receptor
nicotine is an agonist
- this receptor is also called ionotropic
muscarinic
muscarine is an agonist
- also called metabotropic
adrenergic neurons
neuron that releases norepinephrine (noradrenaline) or epinephrine (adrenaline) as its NT
adrenergic receptor
binds epi/norepi
adrenergic receptors
are all metabotropic
- alpha 1,2
- beta 1,2,3
metabotropic receptor
a g protein coupled receptor
ionotropic receptor
nAChr
autonomic neuron - parasympathetic
long preganglionic and short post
autonomic neuron - sympathetic
short pre and long post
somatic neuron
one neuron
- skeletal = alpha
- spindle = gamma
catecholamines
- epi
- norepi
- dopamine
tyrosine AA is the precursor for all catecholamines
enzymes:
1. tyrosine hydroxylase
2. dopamine beta hydroxylase
3. PNMT
ACh synthesis
Acetyl CoA + Choline w/ choline acetyltransferase
parasympathetic nervous system
