The document summarizes the sensory and motor tracts of the spinal cord. It describes the ascending sensory tracts that transmit sensory information to the brain, including the posterior column pathway, spinothalamic pathway, and spinocerebellar pathway. It also describes the descending motor tracts that transmit motor commands from the brain to the spinal cord, including the corticospinal tract for conscious motor control and subconscious motor tracts for balance, posture and coordination. Sensory information is transmitted via ascending tracts in the spinal cord while motor commands are transmitted via descending tracts.