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Answer :
Final answer:
The Dorsal Column-Medial Lemniscus (DCML) pathway is responsible for transmitting proprioceptive feedback as well as fine touch and vibration sensations to the brain, differing from the spinothalamic pathway that carries pain and temperature signals. The correct option is A.
Explanation:
The sensory feedback for proprioception is primarily relayed to the brain through the Dorsal Column-Medial Lemniscus (DCML) pathway. This pathway conveys information about fine touch, vibration, and proprioception. The spinothalamic pathway, in contrast, is responsible for transmitting pain and temperature sensations to the brain.
Both pathways begin with neurons in the dorsal root ganglia and involve a contralateral second neuron; however, their decussation points differ, with the DCML decussating in the brain stem, while the spinothalamic decussates at the level of spinal cord entry. Proprioceptive impairments can greatly affect one's balance and coordination, highlighting the importance of the DCML pathway in sensory feedback.
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