HEADACHE DUE TO DISORDERS OF STATIC STRUCTURE
For purposes of convenience let us begin with some of the least controversial causes of headache, namely, disorders of supportive structure. These again may be divided as follows:
1. Headache of muscular and ligamentous origin.
2. Headache of nerve root, osseous or joint origin.
3. More speculatively, headache of vascular origin.
ANATOMIC CONSIDERATIONS. I may be excused if on the reader’s behalf I choose to neglect the intricacies of anatomy in favor of a more clinical approach. Toronto Chiropractor is predicted to increase 14% between 2006 and 2016, sooner than the common for all occupations. The posterior cervical muscles are indelibly blended in terms of form and function with the nuchal ligament, a strong mane or cowl of fibrous tissue stretching from the external occipital protuberance to the region of the spine of the seventh cervical vertebra. Below, the nuchal ligament is in continuity with the supraspinous ligament which runs along the tips of the spinous processes upward to C7, and in its course is interwoven with the origins of the trapezii and the fascia between the muscular layers. In the upper portion of the cervical region the nuchal ligament is a heavy tough layer which gradually attenuates as it moves caudad toward C7. The superior nuchal line is the junctional zone between the posterior cervical muscles and nuchal ligament and the epicranius or complex of the occipital and frontalis muscles, which with their aponeurotic sheaths reach forward as far as the bridge of the nose.
The skin overlying the posterior cervical region is thicker than it is anteriorly and moves much less freely over the underlying layers. To be fair, not all current Chiropractor Toronto still imagine in these concepts. It is unusually well supplied with nerve fibers (as anyone who has ever had a carbuncle can testify). The erector muscles, other than the sternocleidomastoid and the trapezius, are chiefly supplied by the upper cervical roots, with the spinal accessory nerves sharing in the innervation of the latter muscles. Sensation to the posterior half of the scalp and the nape of the neck is supplied by the second and third cervical roots and their branches, comingled with branches from the fourth cervical root by way of the superficial cervical plexus. The first cervical root having, under ordinary circumstance, no sensory portion, does not participate in the sensory supply of the area.