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What muscles contract and relax when you bend your leg?
When you Bend your Leg your hamstring contracts and your quadriceps relax
What is muscle cramps?
Muscles cramps occur when a muscle contracts and does not relax. This causes pain in one or sometimes multiple muscles.
When one muscle contracts what happens to the opposing muscle?
When one muscle in a pair contracts the other expands.
Why do muscles ocontract and relax?
Yes, all muscles will contract and relax, Except the cardiac muscle and involuntary muscles which will be constantly working. er. Heart, intestines. But Voluntary muscles will only work together antagonistically.
Why are muscles in pais?
Muscles are in pairs as when one muscle contracts, its pair will relax, and the limb is moved. The reverse happens when the limb is returned to its starting position. Muscles can pull, but they can't push.
What muscles relax when the agonist muscles contract?
in the arm: bicep contracts (agonist) triceps relax (antagonist) in the leg: hamstrings contract (agonist) quadriceps relaxes (antagonist) remember the agonist is the muscle "agonising" to do the work - like pulling the joint.
What is the relationship between a contraction and an extension when dealing with musclular system?
When a muscle contracts it causes flexion and when muscles relax they cause extension
When do muscles moves?
The fastest a muscle fiber can contract is 0.01 seconds or less. However, this is not necessarily the speed that the actual muscle contracts at. For example, the human eyelid can only blink in 0.15 seconds.
How do muscles relax?
Yes, Muscles relax whenever you relax without moving, your muscles make you move, and bones keep your shape!
How do muscles contract and relax?
muscles contract and relax by bring about movements.
What takes place when muscles are not used?
Relax. Muscles can only work by contracting (tensing). When an opposite force is desired, an opposite muscle contracts.
What happens when the biceps muscle contracts?
When the bicep contracts the triceps relax
