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Primitive Reflexes 1

Topic: Adult

Created on Saturday, September 16 2006 by

Last modified on Saturday, September 16 2006.

Which one of the following statements about primitive reflexes is true?

 
        A) The Babinski reflex typically appears by 34 weeks of gestational age; and disappears by the time the child is 10 months old
 
        B) The suck reflex typically appears by 34 weeks of gestational age; and disappears by the time the child is 4 months old
 
        C) The Babinski reflex typically appears by 3 months after birth; and disappears by the time the child is 6 weeks old
 
        D) The parachute reflex typically appears by birth; and disappears by the time the child is 6 weeks old
 
        E) The suck reflex typically appears by birth; and disappears by the time the child is 10 months old
 

 


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This question was created on September 16, 2006 by .
This question was last modified on September 16, 2006.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) The Babinski reflex typically appears by 34 weeks of gestational age; and disappears by the time the child is 10 months old

This answer is incorrect.


The Babinski reflex typically appears by birth; and disappears by the time the child is 10 months old  (See References)

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B) The suck reflex typically appears by 34 weeks of gestational age; and disappears by the time the child is 4 months old

This answer is correct.


The suck reflex typically appears by 34 weeks of gestational age; and disappears by the time the child is 4 months old  (See References)

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C) The Babinski reflex typically appears by 3 months after birth; and disappears by the time the child is 6 weeks old

This answer is incorrect.


The Babinski reflex typically appears by birth; and disappears by the time the child is 10 months old  (See References)

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D) The parachute reflex typically appears by birth; and disappears by the time the child is 6 weeks old

This answer is incorrect.


The parachute reflex typically appears by 9 months after birth; and then usually persists as a voluntary movement  (See References)

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E) The suck reflex typically appears by birth; and disappears by the time the child is 10 months old

This answer is incorrect.


The suck reflex typically appears by 34 weeks of gestational age; and disappears by the time the child is 4 months old  (See References)

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References:

1. Geyer, J.D., Keating, J.M., and Potts, D.C. (2002). Neurology for the Boards, Second Edition. Lippincott Williams & Wilkins, Philadelphia.
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adult
Primitive Reflexes 1
Question ID: 69161
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/16/2006
Modified: 09/16/2006
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