This disambiguation page lists articles associated with the title Thumb extensors. If an internal link led you here, you may wish to change the link to point directly to the intended article. The Thumb, Finger Flexors and Extensors Let’s Begin 1 2 3 Purpose: Designed to improve the strength of the thumb/finger flexors and thumb/finger extensors by minimising the gripping effect of the stronger wrist flexors and extensors. It is impossible to eliminate the actions of the stronger wrist flexors and extensors entirely to isolate the.
Zones of Extensor Tendon Injuries: Zone I • Disruption of terminal extensor tendon distal to or at the DIP joint of the fingers and IP joint of the thumb (EPL) • Mallet Finger: Zone II • Disruption of tendon over middle phalanx or proximal phalanx of thumb (EPL) Zone III • 3.4/5. Figure 1 - Extensor tendons, located on the back of the hand and fingers, allow you to straighten your fingers and thumb. Figure 2 - The mallet finger deformity causes a droop of the fingertip. This is caused by injury to the extensor tendon at the last finger joint.
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 humans, certain muscles of the hand and. Finger Extensors EDC tendons. Thumb Tendons APL tendon. The abductor pollicis longus tendon runs on the radial side of the wrist (the side the thumb is on). Its muscle belly is in the forearm and then travels inside a tough band, or retinaculum, across the wrist. The band of tissue, or retinaculum, holds the tendons in place but allows them.
The deep group comprises all the extensors of the thumb, plus a separate extensor for the index finger and a supinator that originates on the humerus. The superficial group originates exclusively from the humerus and includes extensors to the four fingers, as well as the wrist extensors. Mar 14, 2013 · Thumb Exercises for the Abductor Pollicis Longus Muscle & Extensor Pollicis Longus Muscle. Thumb Exercises for the Abductor Pollicis Brevis .