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From Wikipedia, the free encyclopedia
In anatomy, flexor is a muscle that contracts to perform flexion (from the Latin verb flectere, to bend),[1] a movement that decreases the angle between the bones converging at a joint. For example, one's elbow joint flexes when one brings their hand closer to the shoulder, thus decreasing the angle between the upper arm and the forearm.
The hip flexors are (in descending order of importance to the action of flexing the hip joint):[2]
Without the iliopsoas muscles, flexion in sitting position is not possible across the horizontal plane.[2]
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