What is blood pressure ? What are normal valve of systolic and distolic blood pressure ? How is it measured ? Name the instrument used to measure blood pressure.

Explanation

Blood pressure is the force that blood exerts against the wall of a vessel. This pressure is much greater in arteries than in veins. The pressure of blood inside the artery during ventri systole is called systolic pressure and pressure in artery during ventricular diastole is called diastolic pressure.
The normal systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg.
Blood pressure is measured with an instrument called sphygmo manometer.