Your pectoralis major is a large and powerful chest muscle that’s shaped like a fan. It starts from two sections: your breastbone (sternum) and your collarbone (clavicle). The two sections come ...
South Carolina Gamecocks running back MarShawn Lloyd lifts weights during a workout. Weightlifters have to watch out for an injury to the pectoralis major muscle. Jeff Blake The State Q. I was working ...
The sternum, or breastbone, is the flat bone where the ribs meet. Sometimes, the joints can pop or crack as a person stretches or moves. A muscle spasm, an injury, costochondritis, and surgery are ...
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