Final answer:
Lamina V of the dorsal column conveys fine touch, vibration, and proprioceptive information from the body to the brain, with this pathway decussating in the medulla.
Step-by-step explanation:
The type of input that lamina V of the dorsal column carries is primarily related to fine touch, vibration, and proprioceptive information. The dorsal column system includes the fasciculus gracilis and the fasciculus cuneatus, which are responsible for conveying sensory input from the lower and upper parts of the body, respectively. This system decussates in the medulla before the information is sent to the brain. The spinothalamic pathway, which is separate from the dorsal column, carries sensations of pain and temperature and decussates at the level of entry in the spinal cord.