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.
This injury can result from overexertion, constriction, compression and even stretching. You can have a pinched nerve when the surrounding tissue in your neck, such as bones, muscle, tendons or cartilages, stresses your neck muscle. This pressure can disrupt the nerve in your neck, ultimately causing tingling, pain, weakness or numbness in the area, which is annoying to say the least.