During expiration the diaphragm becomes …..shaped
a) flat
b) B shape
c) contract
d) dome
The blood which enters these capillaries has allows oxygen concentration whereas the inhaled air present in alveoli has a higher ………concentration.
a) carbon dioxide
b) CO
c) nitrogen
d) oxygen
Which of the following is the function of the diaphragm in expiration
a) production of energy
b) relaxation
c) contraction
d) gaseous exchange
Carbon dioxide diffuses out of the blood and into alveoli when carbon dioxide …..
a) equal to
b) less then
c) not present
d) more then
As blood enters the systemic capillaries
a) P o2 in the blood is the same as Pco2 in the tissues
b) P o2 in the alveoli is the same as that in capillaries
c) Po2 in the blood is lower than that in the tissues
d) Po2 in the blood is the same as that in the tissues
Biological
Consequences Of Smoking:
