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what ever the last person say was wrong, its when lets said ur lifting a weight, with ur biceps & triceps, going toward you and back, when you go toward, ur bicep is getting the workout, and the triceps is relaxing, but when the weight is farther away from you, ur bicep is relaxed, and ur triceps is getting the work out.

so

they work together, one working while one relaxes, then they" switch shifts "

hope i could help

<3

P.S. i just learned this while i was doing my hw,2 minutes ago,i was looking up the question too. =]

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12y ago
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9y ago

Many of the muscles in the human body work in pairs in order to produce the movement of our skeleton. These muscles are located on opposite sides of the bone, and function so that when one is contracted the other is relaxed. This is referred to as antagonistic muscle action. Many of the muscles that we use to move our limbs work in this way.

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6y ago

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 opposite direction to straighten the joint out again.

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11y ago

cause working by themselves makes them lonely

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11y ago

While on muscle contracts, the other muscle in the pair relaxes to its original length. <from 7th grade California Focus on Life Science by. Prentice Hall pg.529 key term.>

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8y ago

When one muscle pulls, the other muscle relaxes.

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11y ago

I dont know thats why i am asking

U

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12y ago

Muscles can only pull,not push.

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Q: Why do muscles have to work in pairs?
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Related questions

What are antagonist pairs of muscles?

pairs of muscles that work together


What are antagonist pairs are muscles?

pairs of muscles that work together


Muscles that work in pairs are called what?

they are called antagonistic muscles.


What do skeletal muscles always work in?

Skeletal muscles work in pairs: flexors and extensors


How can muscles work in pairs?

ussually, one muscle in the pair bends part of the body.the other muscle straightens part of the body.


Do skeletal muscles always work in pairs?

false


How do pairs of skeletal muscles work togethe?

by the help of the heart


Muscle that work in opposite pairs are called?

antagonistic muscles


Do skeletal muscles always work in antagonist pairs?

false


Why muscles must work in pairs?

Muscles can only exert force by getting shorter. Muscles work in pairs by one muscle pulling in one direction, the other muscle pulls in the opposite direction. One bends your leg, the other straightens the leg, etc.


Skeletal muscles always work in antagonistic pairs.?

false....


Are muscles that work in pairs called tissues?

No!Muscles that work in pairs are called antagonistic muscles.Tissue is a level between single cells and complete orgenisms, e.g. organs are made out of gruops of tissues.