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NEET UG BIOLOGY MCQ: BREATHING AND EXCHANGE OF GASES
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Read the following statements and choose the option having incorrect statements only.
A) Trachea divides at the level of 5th thoracic vertebra into a right and left primary bronchi.
B) Initial bronchioles are supported by complete cartilaginous rings.
C) Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag-like structures called bronchi.
D) Larynx is a cartilaginous box which helps in sound production and hence called the sound box.
A) Trachea divides at the level of 5th thoracic vertebra into a right and left primary bronchi.
B) Initial bronchioles are supported by complete cartilaginous rings.
C) Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag-like structures called bronchi.
D) Larynx is a cartilaginous box which helps in sound production and hence called the sound box.
View answer and explanation
Correct option: B
B and C only
Option B (B and C only) is correct because initial bronchioles have incomplete cartilaginous rings, and terminal bronchioles give rise to alveolar ducts, not bronchi.
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suffocation.
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oxygen content than the dissolved oxygen in
water. The faster breathing in high fever is due to the