cholinergic receptors Flashcards
1
Q
ANS pre-post receptors
A
nAcHRs
2
Q
ANS parasympathetic effector receptors
A
mAcHRs
3
Q
nicotinic receptor stucture
A
ligand-gated ion channels (Na+,K+)
pentameric structures
4
Q
nicotinic receptor types
A
ganglionic
muscle (motor endplate)
CNS
5
Q
Ganglionic nicotinic receptors
A
Mostly in pre-post synapse of ANS
6
Q
Muscarinic receptor structures
A
G protein coupled receptors
1,3,5 are Gq linked
2,4 are Gi linked
7
Q
M1 receptor
A
Gq linked
slow excitation of ganglia
8
Q
M2 receptor
A
Gi linked
decrease heart rate and contraction force
9
Q
M3 receptor
A
Gq linked
-Causes glandular secretion
-Contraction of smooth muscle
-Dilate vasculature via NO release (eyes, lungs, bladder)
10
Q
sympathetic effector NT
A
Mostly NA
but some has ACh for muscarnic
11
Q
A