Posterior funiculus:

one of the three major subdivisions of white matter in the spinal cord, the posterior funiculi contain ascending pathways carrying sensory information to the brain. Specifically, the posterior funiculi contain the dorsal columns fibers, which transmit information concerning touch and limb position from the body to the brain.

Learn more: Know your brain - Spinal cord

Watch this 2-Minute Neuroscience video to learn more about the spinal cord.