The posterior intermediate sulcus separates the fasciculus gracilis from the fasciculus cuneatus. These include the crossed and uncrossed corticospinal tracts to the legs and fasciculus gracilis. The AI and dACC are linked via a white matter tract along the uncinate fasciculus. Further damage occurs in the white matter of the uncinate fasciculus. Examples of a fascicle are the subthalamic fasciculus and the lenticular fasciculus. The PPRF is located anterior and lateral to the medial longitudinal fasciculus (MLF). Each nucleus has an associated nerve tract, the gracile fasciculus and the cuneate fasciculus. Auditory comprehension skills remain intact because the arcuate fasciculus and Wernicke's area are not impaired. SVN, MVN, and IVN ascend within medial longitudinal fasciculus (MLF). A tract may also be referred to as a commissure, fasciculus or decussation. These two regions are interconnected by a large white matter tract, the arcuate fasciculus. The medial longitudinal fasciculus carries information about the direction that the eyes should move. Lateral to the fasciculus cuneatus is the lateral funiculus. Sternoscapular fasciculus to the upper border of scapula. Another major association tract is the superior longitudinal fasciculus (SLF) that has three parts.