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Thalamic Nuclei 01

Topic: Anatomy

Created on Thursday, September 14 2006 by

Last modified on Tuesday, February 20 2007.

A 44 year-old garbage collector suffers a lacunar infact in the thalamus.

The only observable effect of the stroke is a deficit in cortical arousal. Of the following choices, which nucleus of the thalamus is the most likely location of the stroke?

A) Reticular nucleus

B) Lateral geniculate nucleus

C) Ventral anterior nucleus

D) Ventral posterolateral nucleus

E) Medial dorsal nucleus

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This question was created on September 14, 2006 by .
This question was last modified on February 20, 2007.

ANSWERS AND EXPLANATIONS

A) reticular nucleus

This answer is correct.

The reticular nucleus of the thalamus is associated with cortical arousal (See References)


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B) lateral geniculate nucleus

This answer is incorrect.

Cortical arousal is associated with the reticular nucleus of the thalamus (See References)


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C) ventral anterior nucleus

This answer is incorrect.

Cortical arousal is associated with the reticular nucleus of the thalamus (See References)


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D) ventral posterolateral nucleus

This answer is incorrect.

Cortical arousal is associated with the reticular nucleus of the thalamus (See References)


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E) medial dorsal nucleus

This answer is incorrect.

Cortical arousal is associated with the reticular nucleus of the thalamus (See References)


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References:

1. Nolte, J. (1993). The Human Brain: An Introduction to Its Functional Anatomy. Mosby, St. Louis.


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anatomy
Thalamic Nuclei 01
Question ID: 69141
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/14/2006
Modified: 02/20/2007
Estimated Permutations: 0