<Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> Posterior column--medial lemniscus pathway (PCML) (also known as the dorsal column - medial lemniscus pathway (DCML)) is a sensory pathway of the central nervous system that conveys localized sensations of fine touch, vibration, two - point discrimination, and proprioception (position sense) from the skin and joints . It transmits information from the body to the postcentral gyrus of the cerebral cortex . </P> <P> There are three neurons involved in the pathway: first - order neurons, second - order neurons, and third - order neurons . The first - order neurons reside in dorsal root ganglia and send their axons through the gracile fasciculus and cuneate fasciculus . The first - order axons make contact with second order neurons at the gracile and cuneate nuclei in the lower medulla . The second - order neurons send their axons to the thalamus . The third order neurons arise from thalamus to the postcentral gyrus . </P> <P> The posterior column is composed of gracile fasciculus and cuneate fasciculus . The gracile fasciculus carries input from the lower half of the body and the cuneate fasciculus carries input from the upper half of the body . The gracile fasciculus arise from the fibers more medial than the cuneate fasciculus . </P>

Tactile discrimination from lower limb is carried by