Autonomic Nervous System - 5 Flashcards
0
Q
alpha-1
A
- causes smooth muscle contraction
- phenylephedrine stimulates
- prazosin inhibits
1
Q
alpha-2
A
- auto inhibitory
- clonidine stimulates
- mianserin inhibits
2
Q
Beta-1
A
- increases heart rate and contraction force
- stimulated by dobutamine
- inhibited by propranolol and atenolol
3
Q
Beta-2
A
- smooth muscle relaxation
- stimulated by salbutamol and hexoprenaline
- inhibited by propranolol
4
Q
Beta-3
A
-stimulation causes fat lipolysis
5
Q
Nor-adrenaline re-uptake inhibitors
A
Cocaine
TCA’s
6
Q
COMT
A
inhibits breakdown of noradrenaline
7
Q
Nicotinic receptors
A
- stimulated by nicotine and lobeline
- inhibited by hexamethonium and trimetaphan
8
Q
Muscarinic receptors
A
- stimulated by pilocarpine
- inhibited by atropine
9
Q
Bethanecol
A
M3 - causes bladder constriction, increased peristalsis and bronchoconstriction
10
Q
Tropicamide
A
inhibits pupil constriction and ciliary muscle contraction (inhibition causes lens to flatten)
11
Q
Cyclopentolate
A
inhibits pupil constriction and ciliary muscle contraction (inhibition causes lens to flatten)
12
Q
Atropine
A
Anti-muscarinic drug: causes dry mouth, blurred vision, urinary retention, constipation
(anticholinergic, parasympatholytic)
