Cerebellar Anatomy 04

Topic: Anatomy

Created on Friday, April 6 2007 by jdmiles

Last modified on Friday, April 6 2007.

 
        A) Granule cells
 
        B) Golgi cells
 
        C) Basket cells
 
        D) Purkinje cells
 
        E) Stellate cells
 

 

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This question was created on April 06, 2007 by jdmiles.
This question was last modified on April 06, 2007.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) 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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B) 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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C) Basket cells

This answer is incorrect.

Basket cells do not give rise to parallel fibers. Basket cells are inhibitory interneurons in the cerebellar cortex. Their axons make "basket-like" arborizations around Purkinje cell bodies.  (See References)

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D) Purkinje cells

This answer is incorrect.

Purkinje cells receive excitatory input from parallel fibers. They are not the source of parallel fibers.  (See References)

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E) Stellate cells

This answer is incorrect.

Stellate cells do not give rise to parallel fibers. Stellate cells are types of inhibitory interneurons. They receive input from parallel fibers, and synapse onto Purkinje cells.  (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 04
Question ID: 040607146
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 04/06/2007
Modified: 04/06/2007
Estimated Permutations: 8400