Muscular Dystrophy Association, 1970s
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Transcription: (soft music) 0:02 Narrator All physical movement is the work of muscles. 0:03 There are over 600 muscles in the body, 0:08 or three times as many muscles as there are bones. 0:11 The longest one allows us to move our legs 0:15 and to keep our balance. 0:18 The main muscle used for breathing is the diaphragm, 0:21 which is also involved in coughing, sighing and laughing. 0:24 Skeletal muscles can spring into action 0:30 in a few hundreds of a second, 0:32 and can support 1,000 times their weight. 0:34 Back muscles determine how we stand and how we feel. 0:38 Some muscles are less than one inch long 0:43 and allow us to blink and smile. 0:46 Muscular dystrophy turns muscles into useless tissue. 0:51
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Original permalink · Record added 2025-04-22 23:26:46