15 下述那一個副交感神經作用藥物，其對Nicotinic receptor 之作用最強？
(A) Pilocarpine
(B) Carbachol
(C) Bethanechol
(D) Methacholine

答案：登入後查看
統計： A(47), B(215), C(55), D(97), E(0) #443760

詳解 (共 4 筆)

#1305341
(A) Pilocarpine  蕈毒鹼(M)
(B) Carbachol  無選擇性(M、N)
(C) Bethanechol  蕈毒鹼(M)
(D) Methacholine 蕈毒鹼(M)
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#1237499

27 下列擬副交感神經作用劑中，何者不會被膽鹼酯酶（cholinesterase）水解，對於尼古丁（nicotinic）及蕈毒鹼受體（muscarinic receptor）皆有作用？ 
(A) acetylcholine 
(B) methacholine 
(C) carbachol 
(D) bethanechol

答案C
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#802087
A cholinergic (parasympathomimetic) agent. Carbachol acts directly to stimulate muscarinic (smooth muscle) and nicotinic (autonomic ganglia) receptors and indirectly to inhibit cholinesterase enzyme activity. Carbachol is resistant to hydrolysis by cholinesterases.
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#7374311
(A) Pilocarpine: M-agonist
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(B) Carbachol: 無beta-CH3→有N活性
6a08275d7c0d1.jpg
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(C) Bethanechol: 有beta-CH3→ M受體選擇性
6a08277eb52a0.jpg
(D) Methacholine: 有beta-CH3→M受體選擇性
6a08279fae955.jpg
0
0