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Earn 100

Structures not supported by incomplete cartilaginous rings are/is
(a)Initial bronchioles
(b)Tertiary bronchi
(c)Trachea
(d)Terminal bronchioles

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Important Questions on Breathing and Exchange of Gases
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Animals which have a network of tracheal tubes to transport atmospheric air within the body are

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In humans, the thoracic chamber is formed dorsally by the _____ and ventrally by the _____ . Choose the option which fills the blanks correctly.

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The total volume of air present in the lungs after maximum inspiration is

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With increase in body temperature due to enhanced metabolic activities in human body

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Partial pressure (in ) of and in alveoli are respectively

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Match Column with Column w.r.t. respiratory volumes and their values.
Column | Column |
. Tidal volume | () |
. Inspiratory Reserve volume | () |
. Expiratory Reserve volume | () |
. Residual volume | () |
Choose the correct option.

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Factor which is not favourable for the dissociation of in the body tissues is

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Respiratory rhythm centre and pneumotaxic centre are respectively located in
