FrontalCortex, Inc. is a non-profit corporation dedicated to neurology education.

Muscle Fiber Action Potential

Topic: Physiology

Created on Monday, September 1 2014 by jdmiles

Last modified on Monday, September 1 2014.

A muscle action potential results in a muscle fiber ______

 
        A) Fasciculating
 
        B) Contracting
 
        C) Twerking
 
        D) Contracting, then expanding
 
        E) Expanding
 

 


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 rating not yet available
= How users like you have rated this question.
This question was created on September 01, 2014 by jdmiles.
This question was last modified on September 01, 2014.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Fasciculating

This answer is incorrect.


Muscle fiber fasciculations are a sign of irritation or damage to the neural structures innervating them. Fasciuclations are not part of the normal operation of a muscle fiber.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this question
Average rating not yet available
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




B) Contracting

This answer is correct.


Under normal conditions, a muscle fiber action potential will result in a mechanical contraction of that muscle fiber.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this question
Average rating not yet available
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




C) Twerking

This answer is incorrect.


Muscle fibers don't twerk.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this question
Average rating not yet available
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




D) Contracting, then expanding

This answer is incorrect.


Muscle fibers can contract. They do not actively expand or stretch.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this question
Average rating not yet available
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




E) Expanding

This answer is incorrect.


Muscle fibers can contract. They do not actively expand or stretch.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this question
Average rating not yet available
Please log in if you want to rate questions.

 

 

 

 

References:

1. John Nolte; three-dimentional brain reconstructions by John Sundsten. The human brain: an introduction to its functional anatomy. Philadelphia, PA : Mosby/Elsevier, c2009. (ISBN:0323041310)Advertising:
Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this question
Average rating not yet available
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
physiology
Muscle Fiber Action Potential
Question ID: 90114186
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 09/01/2014
Modified: 09/01/2014
Estimated Permutations: 120

User Comments About This Question: