Cerebellar Anatomy 01

Topic: Anatomy

Created on Saturday, March 3 2007 by jdmiles

Last modified on Saturday, March 3 2007.

 
        A) Pyramidal cells
 
        B) Granule cells
 
        C) Golgi cells
 
        D) Betz cells
 
        E) Mossy fibers
 

 

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This question was created on March 03, 2007 by jdmiles.
This question was last modified on March 03, 2007.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) Pyramidal cells

This answer is incorrect.

Pyramidal cells are not found in the cerebellum.  (See References)

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B) Granule cells

This answer is correct.

Cerebellar granule cells, the most abundant neurons in the human brain, give rise to parallel fibers. Parallel fibers rise to the molecular layer of the cerebellar cortex and make excitatory synapses with Purkinje cells.  (See References)

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C) Golgi cells

This answer is incorrect.

Golgi cells do not give rise to parallel fibers. Golgi cells receive input from parallel fibers, and feed back inhibitory signals to the granule cells from which the parallel fibers arise.  (See References)

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D) Betz cells

This answer is incorrect.

Betz cells are not found in the cerebellum.  (See References)

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E) Mossy fibers

This answer is incorrect.

Mossy fibers are axons from afferent neurons outside the cerebellum. They do not give rise to parallel fibers.  (See References)

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References:

1. Purves, D., Augustine, G.J., Fitzpatrick, D., Katz, L.C., LaMantia, A., McNamara, J., and Williams, S.M. (Eds.) (2001) Neuroscience. Sinauer Associates, Sunderland, MA.

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anatomy
Cerebellar Anatomy 01
Question ID: 030307152
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 03/03/2007
Modified: 03/03/2007
Estimated Permutations: 8400