Class X

In chest wall, rib muscles are considered as
  1. intercoastal muscles
  2. coastal muscles
  3. preliminary muscles
  4. pulmonary muscles
Amount of carbon dioxide (CO2) present in inspired air is
  1. 0.06%
  2. 0.04%
  3. 4%
  4. 6%
Respiratory disorder in which lungs are affected is called
  1. emphysema
  2. bronchitis
  3. pneumonia
  4. asthma
Voice box leads to trachea which is also known as
  1. windpipe
  2. alveoli pipe
  3. glottis pipe
  4. pharynx pipe
Kind of bronchitis in which inflammation develops in bronchi is called
  1. chronic bronchitis
  2. coastal bronchitis
  3. intercoastal bronchitis
  4. acute bronchitis
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