spine. 1

A hard, sharp projection. 2. The vertebral column; so called from the spinous proce es of the vertebrae, anterior inferior s. of the ilium. A rough eminence on the margin of the ilium immediately above the acetabulum, anterior nasal s. The inferior sharp edge of the nasal crest of the superior maxilla, anterior superior s. of the ilium. The anterior termination of the crest of the ilium, ethmoidal s. A slight projection in the middle line of the anterior border of the body of the sphenoid bone, which articulates with the cribriform plate of the ethmoid bone, hemal s. The portion of the hemal arch of a typical vertebra that closes it in. iliac s's. The anterior superior and inferior and the posterior superior and inferior s's of the ilium, irritable s. See spinal irritation, under irritation, ischiadic s., ischiatic s. See s. of the ischium. nasal s. A sharp proce which descends in the middle line from the inferior surface of the frontal bone, between the superior maxillae, neural s. The portion of the neural arch of the typical vertebra that closes it in. It is found in all the vertebrae proper (except the last sacral and the coccygeal) as the spinous proce , neurasthenic s. Of R. W. Lovett, a generic term for painful spinal affections in which the subjective symptoms greatly preponderate over the objective signs, pharyngeal s. A short elevation in the middle line of the lower surface of the basilar portion of the occipital bone, posterior inferior s. of the ilium. A slight eminence on the margin of the ilium immediately above the great sciatic notch, posterior nasal s. A prominence formed by the union in the middle line of the elevations upon the posterior internal contiguous margins of the palatal plate of the palate bones, posterior superior s. of the ilium. The posterior extremity of the crest of the ilium, pubic s. See j. of the pubes. railway s. i. Chronic men in go myelitis consequent upon shock caused by a railway accident. 2. Traumatic neurasthenia, s. ache. See rachialgia. s. of Darwin. A slight projection of the free margin of the helix near the upper part, a umed to represent the inverted upper pointed extremity of the ear of quadrupeds, s. of the ischium. An elevation on the posterior border of the ischium just behind the acetabulum. It forms the lower boundary of the great sciatic notch, s. of the pubes, s. of the pubic bone. The outer termination of the crest of the os pubis, s. of the scapula. An o eous plate projecting from the posterior surface of the scapula which extends obliquely upward and outward from a point near the upper fourth of the posterior border to terminate in the acromion proce , s. of the tibia. An elevation on the upper surface of the tibia, between its articular surfaces, which terminates in two tubercles, typhoid s. An acute arthritis and per i arthritis due to infection with the Bacillus typhosus, following or in the course of typhoid fever and causing spinal anchylosis. [Lat, spina, a thorn.]