DCML, vibration, proprioception, location: posterior, ipsilateral lesion 1, decussates in medulla 1, 1st neuron: sensory nerve to medulla, 2nd neuron: medulla to thalamus, 3rd neuron: thalamus to primary somatosensory cortex 1, travel via gracile (LL) or cuneate (UL) fascicle, ascending 1, Spinothalamic, ascending 2, pain, temperature, location: antero-lateral, contralateral lesion, decussates above spinal segment it enters, 1st neuron: sensory nerve to dorsal horn, 2nd neuron: dorsal horn to thalamus, 3rd neuron: thalamus to primary somatosensory cortex 2, Corticospinal, Descending, motor, location: anterior, ipsilateral lesion 2, decussates in medulla 2, 1st neuron: primary motor cortex to ventral horn of spinal cord, 2nd neuron: ventral horn of spinal cord to motor nerve

SPINAL PATHWAYS

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