Question

Give definitions of following terms:

1. Vitiated air 

2. Chalky acid gas 

3. Diaphragm 

4. Inspiration or Inhalation 

5.Expiration or Exhalation

6. Pleura

Answer 1

1.  Vitiated air: Air from which oxygen has been removed. Air containing a reduced percentage of oxygen.
2. Chalky acid gas: Carbon dioxide.
3. Diaphragm: The layer of the muscle between the lungs and the stomach, used especially to control breathing.
4. Inspiration or Inhalation: it is the stage of external respiration in which air or water is taken into the respiratory organ. 
5. Expiration or Exhalation: It is the stage of external respiration in which air or water is sent out of the respiratory organ. 
6. Pleura: These are the membranes covering the lungs.