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There are several muscles involved in bending the arm, and several others used to extend the arm.

Muscles can only PULL; they cannot push or twist.

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14y ago

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Related Questions

What is the muscle when your arm bends?

Probably the Biceps Brachii (commonly called Biceps).


When you arm bends the what muscle is the flexor?

Probably the Biceps Brachii (commonly called Biceps).


When your arm bends what muscle is the flexor?

Probably the Biceps Brachii (commonly called Biceps).


What is the meaning of flexor?

A muscle which bends or flexes any part; as, the flexors of the arm or the hand; -- opposed to extensor.


What is the opposing muscle of the bicep?

bicep- it bends the arm while the triceps straighten the arm.


What muscle bends the arm?

The muscle/muscles that bend your arms are called Flexor and Extensor.


How do muscles work in pairs to bend and straighten the arm?

While one muscle contracts, the other muscle in the pair returns to its original length. The main muscle that bends your upper arm is called the Biceps brachii. The action is called flexion at the elbow. This muscle is on the "front" of the arm. The muscle that acts against this one is called the Triceps brachii. Its' action is extension at the elbow. This muscle is on the "back" of the arm. See the link below:


What kind of nerve goes from the spinal cord to the muscle that bends the fore-arm?

The type of nerve that goes from the spinal cord to the muscle which bends the forearm is name the 'triceps branchii muscle'. This is a fairly large muscle on the back of the upper limb of one of many vertebrates. Hope this is useful! Dr. Lav. :)


Why does your muscle form a hump when your arm is bent?

A muscle can do one of two things: it can contract, or it can relax. If the muscle is connected by tendons to bones, it will then pull on those bones when it contracts, and it will stop pulling on them when it relaxes. The arrangement of bones and muscles in the human arm allows muscles to bend the arm, by contracting. Also, muscles work in pairs. One muscle bends the arm while another straightens it out again. A single muscle can only pull in one direction, so you need a combination of muscles to be able to move around in a useful manner.


What bends the arm?

contracting muscles, tendons, and ligaments in the arm.


What joint bends the arm?

The joint between the humerus and the ulna bends the elbow.


When a girl bends her arm she uses a different muscle to bring it back to the original position Why cant she use the same muscle to both bend and unbend her arm?

Not only girls, this is a very simple science. You use both your triceps and biceps to tense and relax your muscles. But just in case I am wrong, you might want find some other source of information.