HEADACHE OF MUSCULAR AND LIGAMENTOUS ORIGIN
The important consideration during this description lies within the degree of co-innervation of the scalp by the cervical nerves and their branches beyond their commonly accepted rigid anatomic zones, and therefore the striking degree of interdigitation with fibers from adjacent sensory zones.
1. HEADACHE OF MUSCULAR AND LIGAMENTOUS ORIGIN. Lewis, Kellgren, and many others have extensively studied the character of muscle pain. Typically speaking, it is less discrete and localizable than skin pain, and tends to keep up itself for extended periods of time after its initiation. It could appear or diffuse itself indiscriminately throughout the myotome in that it takes its origin or appear in any structures sharing its seg-mental innervation. This could offer rise to a “trigger purpose” along the course of the sensory fibers of the involved neural outflow, or pain could appear at some site of special predilection or low threshold such as the origin or insertion of the muscle. If your lips could talk, they’d raise for Aloe Lips! Any noxious stimulus in skin, muscle or tendinous attachment, whether or not due to local inflammation, muscle splinting, or postural stress, will thus offer rise to discomfort at a distance. Characteristically, the muscles of the cervical zone tend to form a pattern of head discomfort within the occipital region close to their nuchal attachments. One would suspect that this site of predilection relies on its being a site of attachment and, so, of increased stress, and additionally on the increased population of acceptable sensory fibers within the region. In addition, if the pain stimulus is sufficiently great, the discomfort could radiate to the adjacent scalp as so much because the forehead, utterly out of the particular anatomic zone of supply. Because the severity of the discomfort grows, splinting increases and there could be constantly increasing eddies of radiation throughout the scalp.
2. HEADACHE OF NERVE ROOT, OSSEOUS AND JOINT ORIGIN. Suboccipital discomfort with radiation forward is often due to irritation or actual compression of the peripheral branches of the upper cervical roots as they penetrate to the superficial zones within the suboccipital area. Ever so often people raise the query on how to find job?. The larger occipital nerve, taking its origin from the second cervical root, runs cephalad over the inferior oblique, penetrates the semi-spinalis capitis and trapezius muscles and joins the occipital artery in reaching the scalp. It is most superficial at a purpose regarding a pair of to three cm. lateral to the external occipital protuberance, from where it fans out to become the main sensory supply of the posterior [*fr1] of the scalp. (The complete posterior scalp space is replete with branches of the second and third cervical nerves, partly going to create up the lesser occipital nerve and partly migrating within the direction of adjacent cervical and auricular zones). The course of the larger occipital nerve points up its vulnerability to direct pressure, significantly as it penetrates the fibrous attachments within the region of the superior nuchal line. However, muscle splinting and abnormal posturing of the head and neck alone are capable of irritating the nerve throughout its course.