Pressure is a way of measuring how much force is acting over an area. A strong push on a small area creates high pressure, ... exerts enough pressure to make ...
The diastolic blood pressure is the pressure the blood exerts on the vessels in between heartbeats. Hypertension, or high blood pressure, begins when the systolic blood pressure remains above 140 or when the diastolic blood pressure remains above 90.
Blood pressure is the amount of force your blood exerts against the walls of your arteries. High blood pressure, or hypertension, occurs when your blood pressure is elevated over time. Left untreated, it can damage your small blood vessels and organs and lead to heart attacks, stroke, kidney failure and circulatory problems.
The top blood pressure reading is the systolic pressure, which represents how much force the heart exerts when it contracts. The second number is the diastolic pressure, which represents the level or pressure when the heart relaxes. The American Heart Association identifies readings below 120/80 as normal.
Air exerts pressure, too, due to the weight of the air above you. Here's how much pressure the air exerts on you at sea level: The air pressure at sea level is a standard pressure that people refer to as 1 atmosphere (abbreviated atm): If you convert an atmosphere to pounds per square inch, it's about psi.
27/09/2012· If pressure exerted by gases is same in all directions, Why does we have low pressures in higher altitudes and high pressures below. Isotropy means that the pressure at a point in space is independent of direction. Uniformity means that the pressure has the same value at all points in space.