CHAP 5 Flashcards
(29 cards)
1
Q
a general term for agents that bind to cholinoceptors (muscarinic or nicotinic) and prevent the effects of acetylcholine (ACh) and other cholinergic agonists
A
"”Cholinoceptor Antagonists””
2
Q
- also known as antimuscarinic agents or parasympatholytics
- selective blockers of muscarinic receptors
A
"”Anticholinergic Agents””
3
Q
- the prototype of antimuscarinic drugs
- also called ““hyoscyamine””
- found in the plant ““Atropa belladona”” (deadly nightshade), and ““Datura stramonium”” (Jimsonweed/ Jamestown weed; sacred Datura or thorn apple)
A
"”ATROPINE””
4
Q
T/F
Atropine causes reversible (surmountable) blockade of cholinomimetic actions at muscarinic receptors
A
"”TRUE”
5
Q
actions last about ____ hours except when placed topically in the eye, where the action may last for days
A
actions last about ““4”” hours except when placed topically in the eye, where the action may last for days
6
Q
can cause “mydriasis”
Atropine - used to dilate pupils cosmetically and account for the name belladonna (Italian, “beautiful lady”)
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