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Caudate nucleus: a component of the basal ganglia that has a tail-like ("caudate") shape
Corticobulbar tracts: nerve-fiber bundles projecting from the motor cortex to the nuclei of the cranial nerves within the brainstem
Gyrus: a convolution between two or more sulci
Hemodynamic: refers to rate of blood-flow volume
Innervation of the vocal-tract musculature: impulses of the cranial nerves that "steer" the respiratory, laryngeal, and orofacial muscles
Intrasylvian: in the depth of the Sylvian fissure, located at the lateral surface of each hemisphere
Sulcus: a narrow furrow on the brain surface
Supplementary Motor Area (SMA): a region of the brain located within the medial or middle wall of the frontal lobes
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