Cerebral Hemispheres 2


Pyramidal system - definition

consists of upper motor neurons extending from the cortex to the brainstem or spinal cord that make up two major pathways of voluntary movement: the corticospinal and corticobulbar tracts (sometimes called the pyramidal tracts).

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2-Minute Neuroscience: Corticospinal Tract

Know Your Brain: Corticospinal Tract

The colored lines show the path of the corticospinal tract (one of the main components of the pyramidal system) from the motor cortex down through the: midbrain, pons, medulla, and spinal cord (each represented by one cross-section above).


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