Anaerobic respiration is also called :

• restoration

• fragmentation

• multiplication

• fermentation

The largest quantity of air that can be expired after a maximum inspiratory effort is

• residual volume

• tidal volume

• vital capacity of lung

• lung volume

Asthma is caused due to :

• infection of lungs

• infection of trachea

• bleeding into pleural cavity

• spasm in bronchial muscles

A person breathing normally at rest, takes in and expels approximately half a litre of air during each respiratory cycle. This is called :

• tidal volume

• vital capacity

• inspiratory reserve volume

• expiratory reserve volume

The Largest quantity of air that can be expired, after maximal inspiration, is called :

• tidal volume

• vital capacity

• residual volume

• total lung volume

66.

The number of RBCs in man increases if he lives at a higher altitude, this is because

• there is more oxygen at the mountains

• there is less oxygen at mountains

• more heat is required to be produced in the body for keeping warm

• there are no germs in the air in mountain

The average diameter of red blood corpuscles of man is

• 7.2 µm

• 8.1 µm

• 9.2 µm

• 10.3 m

In which of the following subjects, the dead space is highest?

• Old man

• Old woman

• Young man

• Young woman

When the oxygen supply to the tissue in inadequate, the condition is

• dyspnea

• hypoxia

• asphyxia

• apnea

Generally artificial pace-maker consists of one battery made up of

• nickel

• dry cadmium

• photo sensitive material

• lethium