| 单词 | motor neuron disease |
| 释义 | motor neuron diseasemotor neuron diseasemotor neuron diseasemotor neuron disease:see amyotrophic lateral sclerosisamyotrophic lateral sclerosis(ALS) or motor neuron disease, sometimes called Lou Gehrig's disease, degenerative disease that affects motor neurons in the brain and spinal cord, preventing them from sending impulses to the muscles. ..... Click the link for more information. . motor neuron diseasemotor[mo´ter]mo·tor neu·ron dis·ease (MND),motor neuron diseaseNeurology Any of a group of conditions characterized by progressive degeneration and dysfunction of the motor neuron or anterior horn cell–eg, amyotrophic lateral sclerosis–ALS; the terms are difficult to differentiate, and thus used interchangeably; the classic or sporadic form has an incidence rate of 2/105, characterized by upper limb weakness, atrophy, focal neurologic signs See Amyotrophic lateral sclerosis.mo·tor neu·ron dis·ease(mō'tŏr nūr'on di-zēz')motor neuron diseaseA rare disorder of unknown cause in which MOTOR nerve cells suffer gradual and progressive destruction. The condition is rare before the age of 40 and affects men twice as often as women. The initial symptoms depend on which neurons are first involved and include difficulty in swallowing and speaking, or wasting and weakness of the small muscles of the hands spreading to involve the forearms and later the legs. Progressive worsening leads to widespread paralysis of the whole body. Intellectual function is never affected. There is no known treatment. Also known as motor neurone disease.mo·tor neu·ron dis·ease(MND) (mō'tŏr nūr'on di-zēz') |
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