What does the word amyotrophic mean?

The word amyotrophic, when broken down, means muscle nourishment-with "myo" meaning muscle and "trophic" meaning nourishment. In ALS, the motor neurons die from a lack of nourishment. When those motor neurons die, they are not able to send messages to make the muscles move. Because they are unable to move, the muscles atrophy over time and people with ALS eventually become paralyzed.

Other diseases that affect motor neurons include progressive muscular atrophy, progressive bulbar palsy and primary lateral sclerosis.

Continue Learning about Amyotrophic Lateral Sclerosis (ALS)

How is amyotrophic lateral sclerosis (ALS) diagnosed?
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What should I discuss with my doctor if I have been diagnosed with ALS?
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Is amyotrophic lateral sclerosis serious?
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