[Functional anatomy of the pisiform bone].
The pisiform is the only moving structure of the canalis carpi. In the power grip, it undergoes a posterior and medial movement, limited by the pisohamate ligament. This motion is indispensable for a good prehension. The strength of the pisohamate ligament effectively balances the dislocation tendency the flexors carpi ulnaris exert on the pisiform.
D001696:Biomechanical Phenomena; D002348:Carpal Bones / Q000033:anatomy & histology* / Q000502:physiology; D006801:Humans
Anatomie fonctionnelle de l'os pisoforme.