High blood pressure symptoms, signs and risks. High blood pressure, or hypertension, doesnât usually cause any obvious symptoms. The British Heart Foundation estimates that up to 5 million people in the UK have undiagnosed high blood pressure. Left untreated, hypertension can lead to serious diseases, including stroke, heart disease, kidney failure and eye problems.
Quick Answer. The northern ringneck snake is a bluish-black snake that grows to approximately 2 feet in length and lives throughout a sizable portion of North America. The morphology of the ringneck snake varies slightly in terms of coloration, with olive and brown varieties living in certain areas. Continue Reading.
Diadophis punctatus edwardsii. The northern ring-necked snake is a small thin snake. It has a dark slate gray body with a yellow ring around its neck. Its belly is yellow to orange. The head is flattened and the smooth scales give it a glossy appearance. It can be 9 to 25 inches long. The northern ring-necked snake is found in Nova Scotia.