Extensor tendinitis is inflammation in your extensor tendons — the tendons that help you straighten your fingers, lift your toes, extend your wrists back and bring your ankle up. Extensor tendinitis is usually caused by repetitive motions that build up irritation in your tendons over time and overload your tendons with increased weight or ...

Extensor muscle, any of the muscles that increase the angle between members of a limb, as by straightening the elbow or knee or bending the wrist or spine backward. The movement is usually directed backward, with the notable exception of the knee joint.

In anatomy, extension is a movement of a joint that increases the angle between two bones or body surfaces at a joint. Extension usually results in straightening of the bones or body surfaces involved. For example, extension is produced by extending the flexed (bent) elbow. Straightening of the arm would require extension at the elbow joint.

2025年2月25日 · The meaning of EXTENSOR is a muscle serving to extend a bodily part (such as a limb).

2024年3月9日 · The extensor expansion (extensor hood) of the hand is a specialised connective tissue structure by which the extensor tendons insert onto the phalanges. It is a complex structure which acts to balance the forces from a large number of muscles that act on the digits.

2023年11月3日 · Extensor digitorum is a superficial muscle of the posterior compartment of the forearm. Like the majority of the muscles in this compartment, it originates via common extensor tendon that arises from the lateral epicondyle of humerus.

2023年11月3日 · Extensor indicis is a narrow, elongated muscle found in the posterior compartment of the forearm. It belongs to the deep extensors of the forearm, together with supinator, abductor pollicis longus, extensor pollicis longus, and extensor pollicis brevis muscles.

2023年10月30日 · Extensor pollicis longus is a deep muscle of the posterior aspect of forearm extending over the distal aspect of interosseous membrane and distal radioulnar joint.

A muscle the contraction of which causes movement at a joint with the consequence that the limb or body assumes a more straight line, or so that the distance between the parts proximal and distal to the joint is increased or extended; the antagonist of a flexor. See: muscle. [L. one who stretches, fr. ex-tendo, to stretch out]

An extensor is a type of skeletal muscle that serves to extend or straighten a joint, moving bones away from each other. Extensors work in opposition to flexor muscles, which bend joints and bring bones closer together.