Neck tightness: Related Topics. These medical condition or symptom topics may be relevant to medical information for Neck tightness: 1  Neck.  Neck symptoms (833 causes)
Snake doctor is a local name for an insect. Some people also call this fellow a snake dragon. Others may call any kind of dragonfly a snake doctor. This is very confusing. It shows why the experts have given a special name to each creature and each plant.
Agkistrodon contortrix is a species of venomous snake endemic to North America, a member of the Crotalinae (pit viper) subfamily. The common name for this species is the copperhead.The behavior of Agkistrodon contortrix may lead to accidental encounters with humans.he venom of the southern copperhead has been found to hold a protein called contortrostatin that halts the growth of cancer cells in mice and also stops the migration of the tumors to other sites. However, this is an animal model, and further testing is required to verify safety and efficacy in humans.