In recent years, some taxonomic controversy has occurred over the genus of North American rat snakes. Based on mitochondrial DNA, Utiger et al. (2002) showed that North American rat snakes of the genus Elaphe, along with closely related genera such as Pituophis and Lampropeltis, form a monophyletic group separate from Old World members of the genus.
A pinched nerve is a type of injury or damage to a nerve or a group of nerves. The injury can result from compression, constriction, or stretching. A pinched nerve can lead to other conditions and cause temporary or permanent damage depending on the extent of the injury. pinched nerve is a type of injury or damage to a nerve or a group of nerves. The injury can result from compression, constriction, or stretching. A pinched nerve can lead to other conditions and cause temporary or permanent damage depending on the extent of the injury.
In many cases, a pinched nerve as a result of an injury will go away on its own, or will only require anti-inflammatories, hot/cold therapy and a little rest. However, a pinched nerve caused by a degenerative spine condition may require more extensive treatment. Outside of a minor injury, a degenerative spine condition is the most common cause for a pinched nerve. As we age, our spine naturally begins to deteriorate as a result of regular wear and tear and weight gain. Some examples of natural deterioration include: The discs that cushion the spine become brittle and rupture.