
Origin: Posterior surface of ulna; interosseous membrane
Insertion: Posterior surface of proximal phalanx of index finger
Action: Extension and adduction at joints of index finger
Image © 2024 Martijn Froeling. Licensed under the 3-Clause BSD License.

Image © 2024 Martijn Froeling

Image © 2024 Martijn Froeling

Image © 2024 Martijn Froeling