ANSWERS 100% VERIFIED 2025
,What are the neurotransmitters of the PNS - ANSWERAcetylcholine (mediates
cholinergic receptors)
Norepinephrine/epinephrine (mediate adrenergic receptors)
Cholinergic receptor subtypes - ANSWERnicotinic and muscarinic
Adrenergic receptor subtypes - ANSWERalpha 1, alpha 2, beta 1, beta 2
Alpha 1 receptor functions - ANSWERvasoconstriction
ejaculation
contraction of bladder neck & prostate
Alpha 2 receptor function - ANSWERlittle clinical significance
Beta 1 receptor functions - ANSWERHeart (increase rate and force of contraction)
Kidney (renin release)
Conduction of the AV node
Beta 2 receptor functions - ANSWERBronchial dilation
relaxation of uterine muscle
vasodilation
glycogenolysis
Dopamine function - ANSWERdilates renal blood vessels
Without subtypes - ANSWERa drug that acts on one site will alter all sites
Cholinergic drugs function to - ANSWERTurn on PNS
Muscarinic Agonists function - ANSWERmimic the effects of acetylcholine at muscarinic
receptors
Bethanechol function - ANSWERconstricts bronchi, increase GI tone and motility,
contraction of detrusor muscle and relaxes trigone and sphincter
Bethanechol used for - ANSWERurinary retention
bethanechol adverse effects - ANSWERhypotension, abd cramps/diarrhea, increased
salivation, asthma exacerbation
Cevimeline - ANSWERtreats dry mouth in Sjogren Syndrome
, Pilocarpine - ANSWERtopical therapy for glaucoma
Acetylcholine - ANSWERUsed for mitosis (pupil constriction) after cataract surgery
Muscarinic poisoning treated with - ANSWERatropine
Drugs that turn off PNS - ANSWERMuscarinic antagonists (parasympatholytic drugs,
antimuscarinic drugs, muscarinic blockers, anticholinergic drugs)
Muscarinic antagonists function - ANSWERselectively block the effects acetylcholine at
muscarinic receptors
Muscarinic antagonists are also known as - ANSWERparasympatholytic drugs,
antimuscarinic drugs, muscarinic blockers or anticholinergic drugs
Atropine function - ANSWERIncreases HR
Decrease secretions
relax bronchi
decrease tone of detrusor
decrease tone & motility of GI
mydriasis (pupil dilation)
Atropine uses - ANSWERpreanesthetic
eye disorders
bradycardia
intestinal hypermotility
asthma
muscarinic agonist poisoning
Atropine side effects - ANSWERdry mouth
blurred vision
increase IOP
urinary retention
constipation
tachycardia
asthma
Atropine can me used to treat _______ but can also worse _______ by thickening and
drying bronchial secretions causing plugging - ANSWERAsthma
Anticholinergic drugs for overactive bladder - ANSWERoxybutynin (Ditropan)
Darifenacin
Solifenacin
Tolterodine
Fesorterodine
Trospium