The title “Head Rotation (Contralateral)” refers to the movement of turning the head away from the side where the involved muscles are contracting. This occurs because certain muscles generate contralateral rotation, meaning that if the muscles on the right side of the neck contract, the head rotates to the left, and vice versa. Head Rotation describes the movement of turning the head along the transverse (horizontal) plane, while Contralateral specifies that the movement is produced by muscles

Peripheral nerve function extends beyond motor and cutaneous roles. The posterior interosseous nerve terminates in the dorsal wrist capsule and contributes innervation to the TFCC. The dorsal sensory branch of the ulnar nerve and the medial antebrachial cutaneous nerve add further afferent input. These represent part of a broader network of ligamentous and capsular afferents essential to wrist proprioception. Their continuous feedback allows the central nervous system to refine motor output, sta