Final answer:
The fasciculus cuneatus is the lateral division of the dorsal column system, composed of fibers from sensory neurons in the upper body and arms.
Step-by-step explanation:
The fasciculus cuneatus is the lateral division of the dorsal column system. It is composed of fibers from sensory neurons in the upper body and arms.
The dorsal column system is responsible for carrying information about touch and proprioception to the brain.