The cell of a nerve responsible for transmission of the signal along the nerve fibre.
A group of disorders of unknown origin. Certain cells in the neurological system’s MOTOR nerves degenerate and die. Upper and lower motor neurones may be affected but sensory cells retain their normal functions. Three types of MND are identi?ed: amyotrophic lateral sclerosis (AML – 50 per cent of patients); progressive muscular atrophy (25 per cent), in which the prognosis is better than for AML; and bulbar palsy (25 per cent). Men are affected more than women, and the disorder affects about seven people in every 100,000. Those affected develop progressive weakness and wasting of their muscles. The diagnosis is con?rmed with various tests including the measurement of electrical activity in muscles, electromyography, muscle BIOPSY, blood tests and X-ray examination of the spine. There is no medical treatment: patients need physical and psychological support with aids to help them overcome disabilities. The Motor Neurone Disease Association provides excellent advice and help for sufferers and their relatives. (See APPENDIX 2: ADDRESSES: SOURCES OF INFORMATION, ADVICE, SUPPORT AND SELF-HELP.)... motor neurone disease (mnd)
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