Body Fluids and Circulation — Bio Zoology STD 11 — Question
Tamilnadu BoardEnglish MediumSTD 11Bio ZoologyBody Fluids and Circulation2 Marks
Question
What is hypertension?
✓
Answer
Hypertension is the most common circulatory disease. The normal blood pressure in man is 120/80 mmHg. In cases when the diastolic pressure exceeds 90 mm Hg and the systolic pressure exceeds 150 mm Hg persistently, the condition is called hypertension. Uncontrolled hypertension may damage the heart, brain and kidneys.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.