Show pageBacklinksCite current pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. =====Upper motor neuron===== Upper [[motor neuron]]s are motor neurons that originate either in the [[motor cortex]] or in the [[brainstem]] and carry motor information down to the [[lower motor neuron]]s. The main effector or motor neurons (efferent neurons) for voluntary movement lie within layer V of the primary motor cortex and are a type of giant pyramidal cell called Betz cells. The cell bodies of these neurons are the largest in the brain, approaching nearly 0.1mm in diameter. see [[Upper motor neuron syndrome]]. upper_motor_neuron.txt Last modified: 2024/06/07 02:52by 127.0.0.1