Which of the following is/are the principal organ/s of respiration?
a) larynx
b) trachea and bronchi
c) lungs
d) heart
The right and left lungs are separated medially by the…….
a) heart
b) liver
c) mediastinum
d) both a and c
The amount of air which is inhaled or exhaled at rest called tidal volume which is ………ml.
a) 3000
b) 500
c) 6000
d) 100
The inspiratory reserve volume during deep breath is……ml.
a) 3000
b) 500
c) 6000
d) 100
Total lung capacity of human is …….ml.
a) 3000
b) 5000
c) 6000
d) 1000
Why birds perform much better than man at high altitude?
a) they have haemoglobin with a very high affinity for oxygen
b) they have one-way flow or air through the lungs
c) they have several large air sacs in addition to the lungs
d) all of these
