An illustration depicts the pathway of the transduction of vibration, proprioception, and fine touch, which shows the axon of the primary sensory neuron passing through the dorsal root ganglion of the cervical spinal cord and synapses at the nucleus cuneatus in the caudal medulla. The axon of the secondary sensory neuron from the synapses then passes from nucleus gracilis in caudal medulla through internal arcuate fibers to medial lemniscus in the rostral medulla, medial lemniscus in the midbrain, and synapses at the ventral posterior lateral nucleus of the thalamus, and it reaches the primary somatosensory cortex in the cerebrum.

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