there are many skeletal muscles in your body for skeletal muscles to move a limb like your arm ,in either directlon,the muscles must work
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Skeletal muscles only pull in one direction. For this reason they always come in pairs. When one muscle in a pair contracts, to bend a joint for example, its counterpart then contracts and pulls in the oppositedirection to straighten the joint out again
jaterriomoneyp9pyr2:
wich answerer is it,alone or,in pairs or,in group tree or,with ever other muscles in the body
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