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What else can I help you with?
When a muscle contrats what happens to its opposite muscle?
depends on which muscle but the opposite muscle sometimes contracts aswell to stabalize the joint some relaxes ...
When one muscle contracts what happens to the opposing muscle?
When one muscle in a pair contracts the other expands.
When you flex your arm muscle what happens?
The muscle in your arm contracts. The muscle on the other side of your arm, opposite from the side that you are flexing, stretches.
When one muscle contracts what dose the other muscle do?
Relaxes
When this muscle contracts the head rotates so that the face turns downward and to the opposite side?
sternocleidomstoid
When this muscle contracts the head rotates so that the face turns downward and to the opposite side.?
sternocleidomstoid
Muscles that work as opposite pairs to move bones are called?
Agonist & AntagonistsAgonist is the muscle responsible for the primary movement ( muscle that contracts)Antagonist is the opposite muscle that must relax to allow the agonist to move a joint.
When a muscle contracts what does the other one do?
relax
What does the other muscle do when one relaxes?
It Contracts
What does one muscle do while the other one relaxes?
contracts - for antagonistic muscle pairs e.g. muscles in arm (when one relaxes, other contracts, and vice versa)
how does one muscle in a pair behave when the other muscle contract?
When one muscle in a pair contracts the other expands.
Why muscles have to work in pairs?
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.
