Carley MCQ 03

Topic: Anatomy

Created on Saturday, November 26 2022 by carley

Last modified on Saturday, November 26 2022.

 
        A) Mg++
 
        B) Na+
 
        C) K+
 
        D) Ca++
 

 

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This question was created on November 26, 2022 by carley.
This question was last modified on November 26, 2022.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) Mg++

This answer is incorrect.

Magnesium does not play a role in in neurotransmitter exocytosis   (See References)

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B) Na+

This answer is incorrect.

Na+ does not play a role in neurotransmitter exocytosis   (See References)

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C) K+

This answer is incorrect.

K+ does not play a role in neurotransmitter exocytosis   (See References)

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D) Ca++

This answer is correct.

Opening of Ca++ gated ion channels results in vesicles fusing with the membrane and releasing their contents into the synaptic cleft   (See References)

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References:

1. Nolte, J. (2008). The Human Brain: An Introduction to Its Functional Anatomy, 6th ed. Mosby, St. Louis. (ISBN:0323041310)

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anatomy
Carley MCQ 03
Question ID: 112622003
Question written by carley. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 11/26/2022
Modified: 11/26/2022
Estimated Permutations: 24