Upper motor neuron cell bodies originate in all the following except

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Upper motor neurons originate in the brain and are involved in the planning, initiating, and directing voluntary movements. Their cell bodies are located in several areas of the brain, including the precentral gyrus (primary motor cortex), vestibular nuclei (for balance and posture control), and red nuclei of the midbrain (involved in motor coordination). The superior and inferior colliculi, located in the midbrain, are primarily involved in visual and auditory processing, respectively, and do not serve as origins for upper motor neurons. The postcentral gyrus, on the other hand, is the primary somatosensory cortex, responsible for processing sensory information from the body, thus it does not contain the cell bodies of upper motor neurons.

Upper Motor Neuron Cell Bodies Originate in All the Following