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Question

The ultimate end parts of the respiratory system in humans are known as

A
alveoli
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B
bronchioles
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C
tracheoles
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D
bronchi
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Solution

The correct option is B alveoli
The respiratory system terminates in the alveoli which are sac-like structures and are enveloped by the capillary network for the exchange of gases.
Hence, the correct answer is 'alveoli'.

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