Extensor muscle | Back, Leg, & Arm Muscles | Britannica
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 …
List of extensors of the human body - Wikipedia
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. …
Extensor Expansion of the Hand - Central Slip - Lateral Band ...
Nov 6, 2025 · The extensor expansion 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 …
Extensor Tendonitis: What It Is, Causes & Treatment
May 7, 2022 · What is extensor tendinitis? Extensor tendinitis (sometimes spelled tendonitis) is a type of tendinitis that affects the tendons on the back of your hands and the top of your feet.
Extensor Tendon Injuries - Hand - Orthobullets
Nov 16, 2025 · Extensor Tendon Injuries are traumatic injuries to the extensor tendons that can be caused by laceration, trauma, or overuse.
Extensor tendon mechanism - AO Foundation Surgery Reference
The extensor tendon mechanism is a complex structure that is responsible for extending the fingers. It is composed of the following components: Extensor digitorum communis (EDC) tendon: This tendon …
Extensor digitorum: Origin, insertion and action | Kenhub
Nov 3, 2023 · Extensor digitorum is a superficial forearm extensor mainly responsible for extending fingers 2-5. Learn more about its anatomy and muscles at Kenhub!
Extensor Carpi Ulnaris: Action, Origin, Insertion, & Innervation
Apr 6, 2024 · The Extensor carpi ulnaris (ECU) is a long fusiform muscle in the forearm, mainly responsible for wrist movements. It is one of the superficial muscles in the forearm’s posterior …
Extensor Tendon - TeachMe Orthopedics
Jan 5, 2025 · The extensor mechanism in the finger, in comparison to that of the flexors, is thinner, less substantial, and less likely to hold sutures well. At the wrist and forearm, however, the extensors’ …
Wrist & Hand Muscles - Origin, Insertion, Action & Exercises
May 14, 2025 · The many wrist and hand muscles include the flexor pollicis longus, flexor digitorum superficialis, flexor carpi ulnaris, flexor carpi radialis.