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At which level does trachea divide into ...

At which level does trachea divide into two primary bronchi in humans?
(a) 5th cervical vertebra
(b) 7th cervical vertebra
(c) 5th thoracic vertebra
(d) 5th lumbar vertebra

A

(1) 5

B

(2) 6

C

(3) 9

D

(4) 4

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The correct Answer is:
A
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ALLEN-BIOLOGY AT A GLANCE (ZOOLOGY )-EXERCISE
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  2. Oxy-haemoglobin dissociates into oxygen and deoxy-haemoglobin at

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  3. At which level does trachea divide into two primary bronchi in humans?...

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  4. Which of the following structure is present inside the larynx of the ...

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  5. If a large number of people are enclosed in a room then

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  6. Which of the following respiratory volume has the volume of 1100 mL to...

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  7. How many layers are present in the diffusion membrane of alveolar capi...

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  8. Shifting of the curve to right takes place in the case of ltimg src="h...

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  9. The mucus produced by the goblet cells (a) moistens the incoming ai...

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  10. How much amount of carbondioxide is transported by plasma?

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  11. ECG depicts the depolarisation and repolarisation processes during the...

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  12. Match column I with column II:

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  13. Open circulatory system is found in

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  14. Blood will lose maximum Oxygen when pass through

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  15. As compared to artery, a vein has

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  16. Normally the greater portion of circulating blood is present in the.

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  17. If due to some injury the chordae tendineae of the tricuspid valve of ...

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  18. Which of the following events takes place in cardiac cycle after the e...

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  19. In order for the blood to flow from right ventricle to left ventricle ...

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  20. Which of the following statements are incorrect?

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