sternal muscle


An inconstant muscle running parallel to the sternum across the costosternal origin of the greater pectoral muscle and usually connected with the sternocleidomastoid muscle and the rectus muscle of the abdomen.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.