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neuro part 1 parasympathetic.txt
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Parasympathetic nervous system
controls activities that conserve energy output
major neurotransmitter = acetylcholine
Drugs that mimic effect of acetylcholine
cholinergic receptor agonists
parasympathomimetics
Drugs that block the effect of acetylcholine
anticholinergics
cholinergic or muscarinic receptor antagonists
parasympatholytics
antispasmotics
Two types of cholinergic receptors
nicotinic acetylcholine receptors (NAChRs) (nicotine)
muscarinic acetylcholine receptors (mAChRs) (muscarine)
Effects of sympathomimetics
increase in blood pressure
increase in heart rate
relaxes bronchioles
dilates pupils
relaxes urinary bladder
relaxes GI muscle
Effects of parasympathomimetics (direct acting)
decrease blood pressure
decrease heart rate
constrict bronchioles
constrict pupils
contract urinary bladder
increase peristalsis
Indirect-acting cholinesterase inhibitors
effects similar to direct-acting
Effects of sympatholytics
decrease heart rate
decrease blood pressure
constrict bronchioles
Effects of parasympatholytics
increase heart rate
decrease mucus secretions
decrease gastrointestinal motility
increase urinary retention
dilate pupils
Author
mhunger
ID
178651
Card Set
neuro part 1 parasympathetic.txt
Description
parasympathetic system
Updated
2012-10-21T02:08:32Z
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