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Friday, 17 August 2018

What is Blood pressure? How to measure the blood pressure in human?




What is Blood pressure? How to measure the blood pressure in human?


Ventricular contraction generates the fluid pressure, called blood pressure, that forces blood through the pulmonary and systemic circuits. More specifically, blood pressure is the force the blood exerts against the inner walls of blood vessels.

Measurement


Before the measurement we known the types of blood pressure that are given below.

Systolic pressure

The maximum pressure achieved during ventricular contraction is called the systolic pressure.

Diastolic pressure

 When the ventricles relax the pressure of arterial decrease, and  remain pressure that exit in the arteries is called the diastolic pressure.
In humans, normal systolic pressure for a young adult is about 120 mm Hg, which is the amount of pressure required to make a column of mercury (Hg) in a sphygmomanometer rise 120 mm. Diastolic pressure is approximately 80 mm Hg. Conventionally, these readings are expressed as 120/80.

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