Question
Biology Question on Blood
Blood pressure is measured by
A
sphygmomanometer
B
stethoscope
C
electrocardiogram
D
phonocardiogram
Answer
sphygmomanometer
Explanation
Solution
Blood pressure is measured by sphygmomanometer. Two curved metal tubes are opened by a rubber pressure pad. The device has a registering manometer. Stethoscope is used to measure pulse rate. Electrocardiogram is an electrical recording of heart and is used to investigate heart disease. Phonocardiogram is a recording of heart sounds, which leaves a permanent record in the form of a tracing recorded on paper.