Physiology Concurrent flexion of both wrists in response to electrical stimulation is characteristic of which area of the nervous system? A Postcentral gyrus B Vestibulospinal tract C Dentate nucleus D Supplementary motor coex 💡 Explanation Concurrent flexion of both wrists in response to electrical stimulation is characteristic of which area of the nervous system? ✓ Correct Answer: D. Supplementary motor coex