internal intercostal muscle
Any of the muscles with their origin from the lower border of a rib, with insertion into the upper border of the rib below, with nerve supply from the intercostal nerve, and that contract during expiration and serve to maintain a tension in the intercostal spaces that resists mediolateral movement.
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Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.
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Words nearby internal intercostal muscle
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.