Breathing Rate: The number of times a person breathes in one minute is known as his breathing rate. A normal human being breathes in 15-20 times per minute. While running or doing heavy physical work, the breathing may increase up to 26 breaths per minute. This is because we require extra energy.
Stethoscope : The heartbeat can be heard by an instrument called stethoscope.It is used by doctors to amplify the sound of heart. It consists of :
Doctor get to know about the condition if heart by listening the sound through a stethoscope.
Stethoscope
A normal human being breathes in ______________ times per minute. | |||
Right Option : C | |||
View Explanation |
Which of the following are correct ? (a) The number of times a person breathes in one minute is known as his breathing rate . (b) Running or doing heavy physical work, the breathing may increase up to 26 breaths per minute . (c) The heartbeat can be heard by an instrument called stethoscope . | |||
Right Option : D | |||
View Explanation |
The number of times a person breathes in one minute is known as ________________ . | |||
Right Option : A | |||
View Explanation |
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