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.
A deviated septum is a common condition that involves a displacement of the septum, the wall that separates the nostrils, to one side of the nose. In adults, the septum is made of cartilage and bone, and helps to support the nose and its mucous membranes, and enables regular air flow.