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to suck a dick like this one on the right 8=======D or you can suck on a vigaina like this one on the right O
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If a muscle contracts and its fibers shorten is the contraction isometric?
No! It is isotonic. But if the muscle contracts and the fibers do not shorten because the load is greater than the force applied to it, it is isometric.
When a muscle contracts and exerts force what is the energy used?
ATP - Adenosine triphosphate
What is muscle force and its vector representation?
Muscle force is the force produced by the contraction of a muscle. Force vectors, torque vectors, and difference vectors can all be used to help describe this force.
What happens when a muscle pulls a force on a bone?
skeletal muscles that are attached to ligaments that are attached to bone
What does a muscle become when it contracts?
A muscle becomes shorter when it contracts.
When a muscle contracts how does its form change?
A muscle that contracts shortens whereas a muscle that relaxes lengthens.
What is the term for the rapid rise and fall in force produced by a muscle fiber after a single action potential?
A twitch is the rapid rise and fall in force produced by a muscle fiber after a single action potential.
What happens to muscle force production when the muscle is too short?
Force produced is reduced, when the muscle is over-stretched or under-stretched it is weaker. Most muscles will produce max force at roughly 90 degrees.
Why do muscles work in antagonistic pairs?
Because muscle can only contracts. The only way for it to lengthen is by having an outside force, ie, another muscle's contraction.
What system does the diaphragam belong to?
The respiratory system. It's a sheet of muscle below the lungs, that contracts to force air into the body.
When one muscle contracts what happens to the opposing muscle?
When one muscle in a pair contracts the other expands.
If you were lifting a dumb bell would your muscle be contracting isometrically or isotonically?
Isotonically - The load your are lifting is equal to or less than the force generated by your muscle. Your muscle shortens when it contracts allowing you to lift the dumbbell.
