Question

The normal systolic and diastolic pressure in human beings is
A) 80/120 mm of Hg
B) 130/90 mm of Hg
C) 120/80 mm of Hg
D) 140/80 mm of Hg

Answer 1

Blood pressure can be defined as the force of pressure exerted by blood cells on the inner wall of blood vessels.

Complete answer:
Systole is one of the sections in the cardiac cycle where some changes in the heart tend to contact after refilling with blood. The pressure exerted by the blood in the arteries when the heart tends to contact and pump the blood to lungs, usually systolic blood pressure remains high.

Diastole is the condition where there is expansion or relaxation of heart muscles after the inflow of blood into the heart from the lungs, it can also be considered as the relaxation of heart muscles due to oxygenated blood.

Diastolic pressure is pressure exerted on the walls of the heart due to the inflow of oxygenated blood from lungs into the ventricles of the left side of the heart. Usually the pressure of diastole is always low compared to diastolic pressure.

As mentioned above in the hint, systolic pressure is always high compared to diastolic pressure, so the first option is incorrect as the values are in reverse ratio. The determined average systolic and diastolic pressure of a healthy adult human is 120/80 mm of Hg.

Hence the correct answer is option C.

Note: The systolic and diastolic pressure will change if there is any alteration in an individual's health, or at certain activities such as sports or exercises, later this pressure returns to normal.