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Found 1 from your keywords: subject="human physiology"
cover
Under The Microscope MUSCLES How We Move and Exercise
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Walker, Richard

Muscles have the unique ability to contract - or get shorter - and then relax and return to their original length. By getting shorter - an action that requires energy - muscles are able to move parts of the body. They bend and straighten our legs when we run, and squeeze our esophagus (the tube that links the throat to the stomach) when we swallow food. There are three types of muscles found…

Edition
2001
ISBN/ISSN
0-7172-9265-7
Collation
50 p.: ilus.; 29 cm
Series Title
-
Call Number
612 ROY u