Breathing & Exc...

The value of TV is about 500 ml for an average adult human male but only some part of it enters lung alveoli and rest of it fills respiratory passage. What should be the distribution ratio for alveolar volume /respiratory passage volume:

Match the following:

respiratory volume            value (in ml)

a) RV                                   i) 1000 - 1100  

b) ERV                                ii) 6000 - 8000

c) TV                                   iii) 2500 - 3000 

d)IRV                                  iv) 1100 - 1200 

Oxygenation of blood occurs in

Ram suffers punctures in his chest cavity without any damage to the lungs in an accident. It results in

Which part of our respiratory system doesn’t need ciliated epithelium and thus have non-ciliated walls ?

Which of the following cells eliminate particles and microbes reaching the alveoli?

The exposure of carbon monoxide to animals

Which of the following structures prevent(s) the food from entering into the wind pipe and lungs during swallowing?

No respiratory pigment is found in