Lesson
Wrist Joint Muscles-Actions
| Action (Plane of Motion) | Flexion (Sagittal) | Extension (Sagittal) | Abduction/ Radial Deviation (Frontal) | Adduction/ Ulnar Deviation (Frontal) |
| Description of Motion | Palmar surface of hand moves towards anterior forearm | Return of the hand to anatomical position from flexion. Hyperextension is the movement of the dorsal surface of hand approaching posterior forearm | Movement of the hand towards the thumb side of the arm | Movement of the hand towards the little-finger side of the arm |
Note: Rotational movement of the hand in all 4 of above directions
is a complex movement termed ‘circumduction’