Long Answer TypeWrite notes on the following :
Hypoxia, pneumonia, emphysema and cough.
i. Hypoxia is the condition produced due to the lack of oxygen.
ii. Pneumonia :is th inflammation of lungs caused by bacteria Diplococcus pneumoniae, in which the air sacs fill with pus and may become solid
iii. Emphysema is a chronic disorder in which alveolar walls are damaged due to which respiratory surface is decreased. In this disease, walls present in between the alveoli break, as a result gas exchange area of the lungs is reduced. It may be caused due to oedema, inflammation or mucus deposition in the bronchi.
iv. Cough : It is the expelling of air from the lungs with a sudden sharp sound.
Short Answer Type(a) Far more oxygen is released from oxyhaemoglobin in a more active tissue than in a less active one.
(b) Oxygenation of blood promotes the release of carbondioxide from blood in the lungs.
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