Damage to the motor neurons impairs the execution of well-learned motor movements.
- Within the spinal cord and brain are specialized brain cells called neurons known as motor neurons.
- The upper motor neurons and the lower motor neurons are their two primary subgroups. Beginning in the brain, the upper motor neurons descend to join the lower motor neurons.
- The central nervous system (CNS) contains motor neurons in the spinal cord, which communicate with muscles, glands, and organs all over the body.
- Spasticity of the muscles and excessive reflex activity might result from the lower motor neurons' inability to receive signals from the upper motor neurons.
- Voluntary movements may become laborious and slow as a result. People who have MNDs may eventually lose their ability to walk or regulate other movements.
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