NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES

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Read the following statement regarding human respiratory system.

Trachea is a straight tube extending up to the midthoracic cavity, which divides at the level of

\underline{(A)}

vertebra into a right and left

\underline{(B)}

Choose the option that correctly fill the blanks

A

and

B

View answer and explanation

Correct option: D

A-5^{\text {th }}

thoracic,

B

- Primary bronchi

Option D (

A-5^{\text {th }}

thoracic,

B

- Primary bronchi) is correct because the trachea divides into the primary bronchi at the level of the 5th thoracic vertebra.

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