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When one muscle contracts what happens to the opposing muscle?
When one muscle in a pair contracts the other expands.
When one muscle contracts what dose the other muscle do?
Relaxes
how does one muscle in a pair behave when the other muscle contract?
When one muscle in a pair contracts the other expands.
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)
When 1 muscle contracts what does the other one do?
Relax
What will the other muscle do while the thumb is pulled toward the finger?
When one muscle contracts, the other one expands.
What happens to the muscle as the arm moves down?
One group of muscles contracts, and the other group extends. As an arm moves down, the bicep muscle (the one that faces the front side of the body and goes from the shoulder to the elbow) relaxes. When the muscle relaxes, it goes from being contracted to elongated. This relaxation happens at the same time that the tricep muscle (the one that faces the backside of the body and goes from the shoulder to the elbow) contracts. This happens because the human body's skeletal muscles have what can be considered compliments. I say this to mean that when a muscle relaxes, there is a muscle that contracts simultaneously. Therefore, they move antagonistically to each other. This is to serve the purpose of creating specific movements that help assist in locomotion. On the molecular level of what happens when a muscle contracts and relaxes, the actin and myosin filaments in muscle fiber overlap to contract and separate to relax.
When one muscle contracts what do the other ones do that are its helpers?
Expand.
What does it mean for muscles to work opposing pairs?
the answer is when one muscle contracts the other relaxes
When one muscle contracts what do the opposite do?
It relaxes
