题目内容

What is the second organ that air passes through in human body?

A. larynx
B. pharynx
C. tonsils
D. trachea

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更多问题

What are the three divisions of the pharynx?

A. nasopharynx
B. oropharynx
C. hypopharynx
D. all are right

What part of the pharynx serves as the common passageway for air and food?

A. oropharynx
B. laryngopharynx
C. pharynx
D. nasopharynx

The _____, a flap of cartilage acting like a lid over the larynx, lies over the entrance to the larynx.

A. uvula
B. epiglottis
C. tonsils
D. vocal cord

The trachea is kept open by 16-20 C-shaped rings of cartilage separated by _____

A. blood tissue
B. muscle tissue
C. fibrous connective tissue
D. nervous tissue