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). — 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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