Which part of the air passageway possesses cartilage plates in its wall?
a) bronchioles
b) distal region of bronchi
c) proximal region of bronchi
d) trachea
Human lungs are spongy due the presence of millions of……….
a) bronchi
b) alveoli
c) bronchioles
d) trachea
Which event is not associated with the activity of expiration?
a) contraction of diaphragm
b) more dome like shape of diaphragm
c) backward and downward movement of rib cage
d) relaxation of intercostals muscles
Oxygen carrying capacity of blood does not depend upon…….
a) partial pressure of CO2
b) partial pressure O2
c) height from sea level
d) quantity of blood
When haemoglobin of the blood is fully saturated with oxygen, the 100cc of blood contains……..
a) 15cc of oxygen
b) 20cc of oxygen
c) 25cc of oxygen
d) 10cc of oxygen
