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Inhaled air is first warmed and moistened by the:

A.

Pharynx

B.

Larynx

C.

Nostrils/nares

D.

Alveoli

Answer and Explanation

The Correct Answer is C

A. Pharynx: Transports air but is not primarily responsible for warming/moistening.

B. Larynx: Functions in voice production and airway protection.

C. Nostrils/nares: Correct; nasal passages warm, moisten, and filter the air.

D. Alveoli: Site of gas exchange, not air conditioning.


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Related Questions

Correct Answer is ["A","B","D"]

Explanation

A. Pharynx: The pharynx (throat) is part of the upper respiratory tract and functions as a passageway for both air and food.

B. Nasal cavity: The nasal cavity is the main entryway for inhaled air and is part of the upper respiratory system.

C. Bronchial tree: The bronchial tree is part of the lower respiratory system, beginning with the bronchi and branching into bronchioles.

D. Larynx: The larynx (voice box) is part of the upper respiratory system; it connects the pharynx to the trachea.

E. Trachea: The trachea (windpipe) is part of the lower respiratory system.

Correct Answer is B

Explanation

A. Bronchioles-glottis-alveoli: This is not a correct sequence; air doesn't go from bronchioles to glottis.

B. Trachea-bronchi-bronchioles: This is the correct anatomical sequence of airflow.

C. Larynx-alveoli-carina: Carina comes before the alveoli and is part of the tracheal bifurcation.

D. Bronchi-trachea-alveoli: Air flows from trachea → bronchi → alveoli, not bronchi → trachea.

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