Alveoli become enlarged and damaged with reduced surface area in heavy smokers. The condition is called
  • Proteins
  • Fats
  • Carbohydrates
  • None of the above
Increased asthmatic attacks in certain seasons are related to
  • Emphysema
  • Bronchitis
  • Silicosis
  • Asthma
The respiratory centre of the brain is sensitive to
  • Inhalation of seasonal pollen
  • Hot and humid environment
  • Low temperature
  • Eating fruits preserved in containers
Emphysema is a
  • More O2 concentration in blood
  • More CO2 concentration in blood
  • Accumulation of blood in the brain
  • All of the above
The pneumotaxic centre is present in
  • Pulmonary disease
  • Cardiovascular disease
  • Neural disease
  • Renal disease
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