he 2 Headache 4 Based on years of experience in my private clinic, and contrary to widely accepted medical practice, I believe that dysfunction of CN XI, which innervates the trapezius and SCM muscles, is involved in migraine headaches. Migraine headaches are tension headaches, and there are four ki

ese allow us to roll our eyes up, down, right, or left. We can extend our field of vision even further if we use the neck muscles to move our head. CN XI, the spinal accessory nerve, controls the trapezius and sternocleidomastoid muscles. These muscles move our head so that we can look up, down, and

e state of our autonomic nervous system. 102 EFTA00810104 The Polyvaga I Theory—A New Paradigm for Health Care? Shoulder, Neck, and Head Pain: CN XI, Trapezius, and SCM In addition to being one of the five "social engagement" nerves, cranial nerve XI (the "spinal accessory nerve") has a special

he levator scapulae, which is innervated by spinal nerves C3—05. This kind of stiff neck will not be eliminated solely by improving the function of CN XI and the trapezius and sternocleidomastoid muscles. (See "The Levator Scapulae Muscle" on page 104). Part of the stiffness may also come from a hia