What is the definition of ulnar deviation?

Ulnar deviation is defined as the movement of the wrist towards the ulna, which is one of the two long bones in the forearm. When the wrist is deviated ulnarly, the hand moves toward the side of the forearm that corresponds with the ulna (the medial side). This movement often occurs when bending the wrist to bring the pinky side closer to the forearm while maintaining the hand in a neutral position.

Understanding ulnar deviation is essential for identifying and describing various wrist movements and can be particularly relevant in clinical assessments, rehabilitation, and sports medicine contexts where wrist injuries or conditions may affect range of motion and functionality.