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Ventrally and laterally, the thoracic chamber is formed by

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Important Questions on Breathing and Exchange of Gases

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Ring like cartilage of larynx is known as

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Which of the following prevents collapsing of the trachea?
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Number of alveoli in the human lungs has been estimated to be approximately
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In humans, oblique fissure is present in
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A pair of external nostrils present in humans opens out
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During inspiration, the volume of thoracic cavity increases because of
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Volume of thoracic chamber increases in anteroposterior and dorso-ventral axis in rabbit by