<P> The origin of a muscle is the bone , typically proximal , which has greater mass and is more stable during a contraction than a muscle 's insertion . For example , with the latissimus dorsi muscle , the origin site is the torso , and the insertion is the arm . When this muscle contracts , normally the arm moves due to having less mass than the torso . This is the case when grabbing objects lighter than the body , as in the typical use of a lat pull down machine . This can be reversed however , such as in a chin up where the torso moves up to meet the arm . </P>
<P> The origin of a muscle is the bone , typically proximal , which has greater mass and is more stable during a contraction than a muscle 's insertion . For example , with the latissimus dorsi muscle , the origin site is the torso , and the insertion is the arm . When this muscle contracts , normally the arm moves due to having less mass than the torso . This is the case when grabbing objects lighter than the body , as in the typical use of a lat pull down machine . This can be reversed however , such as in a chin up where the torso moves up to meet the arm . </P>
where is the origin of a muscle found
where is the origin of a muscle found
the bone , typically proximal , which has greater mass and is more stable during a contraction than a muscle 's insertion
the bone , typically proximal , which has greater mass and is more stable during a contraction than a muscle 's insertion