Pick the correct statement.
The contraction of internal intercostal muscles lifts up the ribs
The RBCs transport oxygen only
The thoracic cavity is anatomically an air tight chamber
Healthy man can inspire approximately 500mL of air per minute
Which one is the cofactor of carbonic anhydrase?
Iron
Zinc
Copper
Magnesium
Oxygen dissociation curve is
sigmoid
parabolic
hyperbolic
straight line
Right lung of rabbit is divided into
four lobes
two lobes
six lobes
eight lobes
By which mechanism, oxygen is transported from lungs to cells?
Diffusion
Facilitated diffusion
Transpiration
Osmosis
Amount of CO2 in expired air is about
0.04%
0.03%
4.5%
2.1%
The movement of chloride ions into erythrocytes from the plasma to maintain osmotic balance during transport of gases is known as
Chlorination
Hamburger phenomenon
Bicarbonate shift
Carbon dioxide transport
Which one of the following has the smallest diameter?
Right primary bronchus
Left primary bronchus
Trachea
Respiratory bronchiole
Carbon dioxide is transported in blood in the form of
haemoglobin
oxyhaemoglobin
carbonate
bicarbonate
The vital capacity of human lung is equal to
500 mL
4600 mL
5800 mL
2300 mL
