The median nerve originates from which nerve roots?

The median nerve originates from the brachial plexus, which is formed by the anterior rami of spinal nerves C5, C6, C7, C8, and T1. The correct answer reflects this anatomical basis, indicating that the nerve roots involved in forming the median nerve span from C5 to T1.

Specifically, the median nerve plays a critical role in motor and sensory functions of the forearm and hand, particularly in the flexion of the wrist and fingers and sensation in the palm and preferential digits. Knowing the cervical levels involved is crucial for understanding injury patterns, surgical approaches, and the diagnosis of various neuropathies.

The other options do not encompass the full range of nerve roots required for the median nerve, thereby providing an incomplete view of its anatomical origin. Choosing the correct spinal segments is essential for professionals in neurophysiologic intraoperative monitoring, as it underpins effective clinical assessment and intervention strategies.