PART - 2 - Unit V : CH - 15 Body Fluids and Circulation — BIOLOGY STD 11 Science — Question
Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 2 - Unit V : CH - 15 Body Fluids and Circulation2 Marks
Question
If a person's blood pressure is measured repeatedly, what does it indicate when blood pressure is $140 / 90$ or more? Explain.
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Answer
If a person's blood pressure is measured repeatedly, and if blood pressure is $140 / 90$ or more, it indicates extreme stress. High blood pressure gives rise to heart diseases and affects other vital organs like the brain and kidneys. Hypertension is a condition in which the blood pressure is higher than normal (120/80). In this parameter 120 mm Hg (Mercury pressure in millimetres) is defined as systolic or pumping pressure and 80 mm Hg is called diastolic or resting blood pressure.
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