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Breathing and Exchange of Gases

Short Answer Type

71. Define vital capacity. What is its significance?

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Long Answer Type

72.

State the volume of air remaining in lungs after a normal breathing.

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Short Answer Type

73. What is the site of gaseous exchange in an insect ?

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74. What happens to respiratory process in man going up a hill ?

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75.

Distinguish between

(a) IRV and ERV.

(b)Inspiratory and expiratory capacity.

(c) Vital capacity and Total lung capacity.

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76. What are occupational respiratory Disorders.

Occpational Respiratory Disorders: These are those disorders which occur due to industrial pollutants. In certain industries, especially those involving grinding or stone-breaking or metal factories , long exposure can give rise to inflammation leading to fibrosis and thus causing serious lung damage.

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