Final answer:
Ascending tracts of the spinal cord carry sensory information up to the brain.
Step-by-step explanation:
The ascending tracts of the spinal cord carry sensory information up to the brain.
The white matter of the spinal cord is separated into columns, with the posterior columns composed of axons of ascending tracts. These tracts transmit sensory information such as touch, vibration, and proprioception from the periphery to the brain.
Examples of ascending tracts include the dorsal column system, which carries information about touch and proprioception, and the spinothalamic tract, which carries information about pain and temperature sensation.