The FrontalCortex question bank can help you study for the neurology boards.

Agents that Affect Cholinergic Synapses - Super Quiz 01

Topic: Pharmacology

Created on Saturday, October 18 2008 by jdmiles

Last modified on Saturday, October 18 2008.

Which of the following statements is most accurate?

 
        A) Tubocurarine is a selective nicotinic receptor antagonist
 
        B) Atropine is a selective muscarinic receptor agonist
 
        C) Beta-bungarotoxin inhibits acetylcholine release from vesicles
 
        D) Tropicamide binds quasi-irreversibly to the acetylcholine receptor at the neuromuscular junction
 
        E) Organophosphates reversibly inhibit acetylcholinesterase
 

 


Back to the question = Go back to the top of the page.
See another question like this one = Reload a different version of this question ().
Click here for a random question = Load a random question from the database.
Clone this question = Use this question as a template to create a totally NEW question.
Rate this question = Enter detailed rating for this question!
Average user rating for this question = 3 = How users like you have rated this question.
This question was created on October 18, 2008 by jdmiles.
This question was last modified on October 18, 2008.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) tubocurarine is a selective nicotinic receptor antagonist

This answer is correct.


Tubocurarine is a selective nicotinic receptor antagonist  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 3
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




B) atropine is a selective muscarinic receptor agonist

This answer is incorrect.


Atropine is a muscarinic receptor antagonist  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 3
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




C) Beta-bungarotoxin inhibits acetylcholine release from vesicles

This answer is incorrect.


Beta-bungarotoxin causes spontaneous release of neurotransmitter from the presynaptic neuron  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 3
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




D) tropicamide binds quasi-irreversibly to the acetylcholine receptor at the neuromuscular junction

This answer is incorrect.


Tropicamide is a muscarinic receptor agonist  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 3
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




E) organophosphates reversibly inhibit acetylcholinesterase

This answer is incorrect.


Organophosphates irreversibly inhibit acetylcholinesterase  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 3
Please log in if you want to rate questions.

 

 

 

 

References:

1. Zygmunt L. Kruk and Christopher J. Pycock. . London ; Chapman and Hall, 1991. (ISBN:412361108)Advertising:
2. Gorio, A., Hurlbut, W.P., and Ceccarelli, B. (1978). "Acetylcholine compartments in mouse diaphragm. Comparison of the effects of black widow spider venom, electrical stimulation, and high concentrations of potassium." J Cell Biol, 78(3) 716-33. (PMID:701357)
3. Salin-Pascual, R.J., and Jimenez-Anguiano, A. (1995). "Vesamicol, an acetylcholine uptake blocker in presynaptic vesicles, suppresses rapid eye movement (REM) sleep in the rat." Psychopharmacology (Berl), 121(4) 485-7. (PMID:8619013)
4. McCann, C.M., Bracamontes, J., Steinbach, J.H., and Sanes, J.R. (2006). "The cholinergic antagonist alpha-bungarotoxin also binds and blocks a subset of GABA receptors." Proc Natl Acad Sci U S A, 103(13) 5149-54. (PMID:16549768)
5. Prasarnpun, S., Walsh, J., and Harris, J.B. (2004). "Beta-bungarotoxin-induced depletion of synaptic vesicles at the mammalian neuromuscular junction." Neuropharmacology, 47(2) 304-14. (PMID:15223309)
Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 3
Please log in if you want to rate questions.

 

FrontalCortex.com -- Neurology Review Questions -- Neurology Boards -- Board Review -- Residency Inservice Training Exam -- RITE Exam Review
pharmacology
Agents that Affect Cholinergic Synapses - Super Quiz 01
Question ID: 10180801
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 10/18/2008
Modified: 10/18/2008
Estimated Permutations: 41038176000

User Comments About This Question:

0 user entries
Please log in if you'd like to add a comment.