Cerebellar Anatomy 04

Topic: Anatomy

Created on Friday, April 6 2007 by jdmiles

Last modified on Friday, April 6 2007.

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

This answer is incorrect.

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

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D) 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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E) 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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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