Question

Normal blood pressure of an adult human is ______.

• A. 100/80 mm Hg
• B. 120/80 mm Hg
• C. 100/120 mm Hg
• D. 80/120 mm Hg

Answer 1

Answer: (B)

120/80 mm Hg

Blood pressure is always presented as a fraction. It is expressed as "systolic over diastolic". The normal systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg. The pressure of blood inside the artery during ventricular contraction is called systolic pressure and pressure in artery during ventricular relaxation is called diastolic pressure.