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image/svg+xml SENSORY MOTOR BRAIN SPINAL CORD PNS SKIN MUSCLE (cortex) Pyramidalneuronof motor cortex Sensory neuron of cortex Motor neuron ofventral horn Sensory neuronin DorsalRoot Ganglion Neuromuscularjunction Muscle fiberor myocyte Myelin sheath RuffinianCorpuscle Paccinian Corpuscle