Question

Blood pressure is measured by —

• A. Sphygmomanometer
• B. Stethoscope
• C. Microscope
• D. Micrometer

Hint:

Remember: \( 120/80 \, \text{mmHg} \) is the normal blood pressure range for adults.

Answer 1

The Correct Option is A

Step 1: Understanding blood pressure measurement.
Blood pressure is the force exerted by circulating blood upon the walls of blood vessels. It is measured using a device known as a sphygmomanometer.
Step 2: Working principle.
A sphygmomanometer consists of a cuff, an inflatable rubber bladder, a pressure gauge, and a stethoscope for listening to arterial sounds. The cuff is wrapped around the upper arm and inflated to stop blood flow temporarily, then slowly released to measure systolic and diastolic pressures.
Step 3: Typical values.
Normal blood pressure in humans is about \( 120/80 \, \text{mmHg} \), where 120 mmHg is systolic and 80 mmHg is diastolic pressure.
Step 4: Conclusion.
Hence, blood pressure is measured by a sphygmomanometer.