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Zoe MCQ 35

Topic: Anatomy

Created on Saturday, November 26 2022 by zoe

Last modified on Saturday, November 26 2022.

Which of the following are true regarding the anterior spinocerebellar tract?

 
        A) The anterior spinocerebellar tract origins at the contralateral spinal cord
 
        B) The anterior spinocerebellar tract ascends through the cord and brainstem as far as the rostral pons/caudal midbrain. Here, the tract crosses the midline again to enter the cerebellum through the inferior cerebellar peduncle.
 
        C) The anterior spinocerebellar tract carries unconscious proprioceptive information from the musculoskeletal structures innervated by cord segments below L2.
 

 


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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) The anterior spinocerebellar tract origins at the contralateral spinal cord

This answer is correct.


The anterior spinocerebellar tract origins at the contralateral spinal cord.  (See References)

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B) The anterior spinocerebellar tract ascends through the cord and brainstem as far as the rostral pons/caudal midbrain. Here, the tract crosses the midline again to enter the cerebellum through the inferior cerebellar peduncle.

This answer is incorrect.


The anterior spinocerebellar tract ascends through the cord and brainstem as far as the rostral pons/caudal midbrain. Here, the tract crosses the midline again to enter the cerebellum through the SUPERIOR cerebellar peduncle.  (See References)

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C) The anterior spinocerebellar tract carries unconscious proprioceptive information from the musculoskeletal structures innervated by cord segments below L2.

This answer is incorrect.


The anterior spinocerebellar tract carries unconscious proprioceptive information from those musculoskeletal structures innervated by cord segments caudal to (and including) the second lumbar segment.   (See References)

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References:

1. Chandar K, Freeman BK. Spinal Cord Anatomy. Encyclopedia of the Neurological Sciences (Second Edition). 2014. https://www.sciencedirect.com/topics/neuroscience/spinocerebellar-tract
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anatomy
Zoe MCQ 35
Question ID: 112622107
Question written by zoe. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 11/26/2022
Modified: 11/26/2022
Estimated Permutations: 0

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