The dorsal horn processes which type of sensory information?

The dorsal horn processes which type of sensory information?

• A. Motor commands
• B. Autonomic signals
• C. Proprioception
• D. Pain and temperature

Answer: (D)

The dorsal horn is the first sensory relay in the spinal cord, handling somatic sensory input that enters the cord. It processes nociceptive (pain) and thermoreceptive (temperature) signals, with pain and temperature fibers (A-delta and C fibers) synapsing in the superficial dorsal horn (lamina I and II) and projecting onward via the spinothalamic tract. Motor commands come from the ventral horn, and much of proprioceptive and fine touch information travels through other pathways (like the dorsal columns) rather than being primarily processed here. Autonomic signals originate from different regions as well. So, the best answer is that the dorsal horn processes pain and temperature.

The dorsal horn is the first sensory relay in the spinal cord, handling somatic sensory input that enters the cord. It processes nociceptive (pain) and thermoreceptive (temperature) signals, with pain and temperature fibers (A-delta and C fibers) synapsing in the superficial dorsal horn (lamina I and II) and projecting onward via the spinothalamic tract. Motor commands come from the ventral horn, and much of proprioceptive and fine touch information travels through other pathways (like the dorsal columns) rather than being primarily processed here. Autonomic signals originate from different regions as well. So, the best answer is that the dorsal horn processes pain and temperature.