See also: List of crossings of the Susquehanna River and List of dams and reservoirs of the Susquehanna River. The Susquehanna River has played an important role in the transportation history of the United States. Prior to the 1818 opening of the Port Deposit Bridge, the river formed a barrier between the northern and southern states, as it could be crossed only by ferry.
A. Hypertension is the medical term for high blood pressure. Both terms mean the same thing. Hypertension (high blood pressure) is defined as having a blood pressure reading of more than 140/90 mmHg over a number of weeks.
Hypertension is classified as either primary (essential) hypertension or secondary hypertension. About 90â95% of cases are categorized as primary hypertension, defined as high blood pressure with no obvious underlying cause.ypertension (HTN or HT), also known as high blood pressure or arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is persistently elevated.