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extrapyramidal

American  
[ek-struh-pi-ram-i-dl] / ˌɛk strə pɪˈræm ɪ dl /

adjective

  1. pertaining to or involving nerve tracts other than the pyramidal tracts, especially the corpus striatum and its associated structures.

  2. located outside the pyramidal tracts.


Etymology

Origin of extrapyramidal

extra- + pyramidal


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Example Sentences

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The extrapyramidal system includes projections from the brain stem and higher centers that influence movement, mostly to maintain balance and posture, as well as to maintain muscle tone.

From Textbooks ● Jun. 19, 2013

The pathways of the extrapyramidal system are influenced by subcortical structures.

From Textbooks ● Jun. 19, 2013

For example, connections between the secondary motor cortices and the extrapyramidal system modulate spine and cranium movements.

From Textbooks ● Jun. 19, 2013

The basal nuclei, which are important for regulating movement initiated by the CNS, influence the extrapyramidal system as well as its thalamic feedback to the motor cortex.

From Textbooks ● Jun. 19, 2013

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