On an average, a healthy human breathes ______times/minute.
1. 70-72
2. 20-25
3. 12-16
4. 120-80

The volume of air expired forcefully after normal inspiration
1. TV+ IRV
2.TV+ERV
3.TV
4. None of these

Which of the following factors will increase the breathing rate
(1)Acidity

(2)decrease in pH

(3)Blood pressure

(4)All of the above

Which of the following volume of air cannot be measured by respirometer?
(1)IRV

(2)ERV

(3)RV

(4)Both A and B

Which one is odd out regarding breathing rate
(1)heart beat rate

(2)B.M.R

(3)CO₂ concentration

(4)Body size

On an average, a human child breathes ______times/minute.
(1)70-72

(2)24-27

(3)12-16

(4)120-80

The volume of air expired normally after forceful inspiration
1. TV+ IRV
2. TV+ERV
3. TV
4. None of these

Volume of air which does not participate in gaseous exchange is
(1)Residual volume

(2)Dead space air

(3)Tidal volume

(4)Both A and B

Which of the following is true regarding breathing rate
(1)It’s minimum in Whale/Elephant

(2)It’s is maximum in shrew

(3)more in child than an adult

(4)All of these

The breathing rate of human embryo ______times/minute.
(1)70-72

(2)20-25

(3)12-16

(4)None of these