Question

write a short note on blood pressure.​

Answer 1

short notes are 4 to 5 lines only if you want more answers when you can search on Wikipedia

Answer 2

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Blood Pressure

The pressure at which the blood is pumped against the wall of a vessel is called blood pressure. This pressure is much greater in arteries than in veins. The pressure of blood inside the artery during ventricular systole or contraction phase, is called the systolic pressure. The pressure of blood in the artery during ventricular diastole or relaxation phase is called the diastolic pressure. The normal is about 120 mm of Hg systolic pressure and diastolic pressure is 80 mm of Hg.

Blood pressure is measured by sphygmomanometer. High blood pressure is known as hypertension and is caused by the constriction of arterioles. It results in increased resistance to the flow of blood which may causes internal bleeding.

Note:-

↠One cycle of contraction (systole) and relaxation (diastole) constitutes the cardiac cycle.

↠Disorders of circulatory system are atherosclerosis, heart attack, arteriosclerosis, angina, etc.

↠The average number of heart beats of a person at rest is about 70 to 72 per minute, but the number of heart beats increases too much after a physical exercise or when a person is excited.

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