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Well there are two muscles which bend the arm: bending your arm from a straight position to a bent position uses the bicep (Latin name - Bicep Brachii) which is on the topside of your upper arm. Bending your arm from a bent position to a straight position uses the tricep (Latin name - Tricep Brachii) which is on the underside of your upper arm. Both muscles work in sinc with each other, so as one muscle tenses and contracts (causing the arm to bend one way or the other), the other losens.

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14y ago

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What are flexors and extensors in the upper arm?

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Tricep brachii is responsible for extension (straightening) of the arm at the elbow. There are 3 heads of the Tricep; the long, lateral and medial heads. The Tricep is an antagonist of the bicep and brachialis muscles of the upper arm, which both assist in flexion at the elbow joint.


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Triceps does not help to bend your arm. It helps to straighten your upper limb across the elbow.


What happens when you bend your muscles when you bend your arm at the elbow?

i think that the upper arm is gonna be workinq but in the bottom is gonna be in rest.( Different Person) Your upper muscles, also known as the biceps, will contract, also known as swell up, while your lower muscles, also known as triceps, will relax. when you straighten your arm the muscles reverse.you are so stupid y would you even put answers out like that? man you whack


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