In which myotome pattern would you expect to find impaired wrist extension?

The myotome pattern associated with wrist extension is primarily linked to the C7 nerve root. This is because the triceps brachii and the extensor muscles of the wrist receive their innervation predominantly from the C7 segment of the spinal cord. When there is an impairment or injury at this level, individuals may struggle with performing wrist extension effectively, leading to weakness or inability to hold the wrist in an extended position.

The C6 myotome is primarily responsible for elbow flexion and wrist flexion, but does not significantly contribute to wrist extension. The T1 myotome relates more to the innervation of the intrinsic hand muscles, which assist with finger movement rather than wrist extension. Finally, the L2 myotome is associated with hip flexion and does not influence wrist motion. Therefore, the correct identification of C7 reflects an understanding of how specific spinal segments contribute to motor function in the upper extremities.