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which one of the following has the small...

which one of the following has the smallest diameter

A

Right primary bronchus

B

Left primary bronchus

C

Trachea

D

Respiratory bronchiole

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The correct Answer is:
D
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ARIHANT NEET-BREATHING AND EXCHANGE OF GASES -Chapter exercises A (Taking it together ( assorted Questions of the Chapter of Advanced Level Practice))
  1. Common factors in the trachea of mammals and insects is

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  2. A charcteristic feature of purely conducting zone of trachea is

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  3. which one of the following has the smallest diameter

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  4. Schneiderian membrane is present at

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  5. In the nasal chamber, the processes of three bones are seen to increas...

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  6. The position of larynex is

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  7. In mammals, the body cavity is partitioned into thoracic and abdominal...

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  8. The ventilation movements of the lungs in mammals are governed by

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  9. which structure is not related to respiration in frog ?

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  10. Expiratory muscles contract at the time of

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  11. the most important function of diaphragm of the mammals is

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  12. During forced expiration , actively contracting muscles

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  13. Mark the correct pair of muscles involved in the normal breathing in h...

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  14. A person suffers punctures in his chest cavity in an accident, without...

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  15. A person breathes in some volume of air by forced inspiration after ha...

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  16. During inspiration , air passes into lungs due to

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  17. The largest quantity of air that can be expired in a single respiratio...

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  18. Vital capacity of lung is

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  19. Maximum amount of air that can exchanged per minute is

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  20. In breathing movements, air volume can be estimated by

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