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Muscles are only able to pull, they never push. The muscles that allow you to tighten your fingers are primarily located in the forearm. Study with quizlet and memorize flashcards containing terms like muscles are only able to pull, they never push, regardless of type, all levers follow the same basic principle

Effort farther than load from fulcrum = mechanical advantage So, to move a limb, one muscle relaxes while the other muscle pulls Effort nearer than load to fulcrum = mechanical disadvantage., movements of the thigh are accomplished by muscles anchored to the pelvic girdle

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Muscles are only able to pull, they never push., which functional group has the major responsibility for countering a specific movement Antagonists fixators agonists synergists, what is a muscle that provides the major force for producing a specific movement called An antagonist a synergist a fixator an agonist. Muscles are only able to pull

They work in opposing pairs where one muscle contracts to pull, while the other relaxes and elongates to allow movement. Your muscles can only pull, so your upper arm muscles cannot simply push your lower arm away Instead, you need a different set of muscles to pull your arm in the other direction Try flexing your arm a few times and see if you can find the muscle that straightens your arm

Try tensing your arm to hold it very straight.

Muscles pull due to their design and mechanistic function, using contraction to exert force They work in antagonistic pairs where one muscle pulls while the other relaxes This means that while muscles can initiate movement by pulling, they cannot push, as pushing requires the opposing muscle to contract. Analyze muscle function<br />### muscles contract to create movement by pulling on bones or tissues

Opposing movements are achieved by antagonistic muscle pairs Therefore, to move bones in opposite directions, pairs of muscles must work in opposition Each muscle in the pair works against the other to move bones at the joints of the body. The muscles can only pull, not push

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