Geographic Range. The original range of Canis lupus consisted of the majority of the Northern hemisphere -- from the Arctic continuing south to a latitude of 20Â° S, which runs through southern Central Mexico, northern Africa, and southern Asia.
Disc desiccation is an extremely common degenerative change of intervertebral discs. The incidence climbs with age, and to a large degree a gradual desiccation is a 'normal' part of disc aging. It results from replacement of the hydrophilic glycosaminoglycans within the nucleus polposus with fibrocartilage.
In Human Anatomy and Physiology. The bifurcation (splitting) of the common carotid artery is in line with/at the level of the intervertebral disc between the third and fourth cervical vertebral (between C3 an â¦ d C4).n Human Anatomy and Physiology. The bifurcation (splitting) of the common carotid artery is in line with/at the level of the intervertebral disc between the third and fourth cervical vertebral (between C3 an â¦ d C4).