Multiple choice

The nose, pharynx and associated structures are included in

  1. bronchitis

  2. bronchial tree

  3. respiratory tract

  4. bronchi

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The respiratory tract (or system) is a complex arrangement of organs and tissues. Its main functions are taking in oxygen and getting rid of carbon dioxide. The respiratory tract can be separated into two parts: (a) the proximal-conducting, non-respiratory airways that include the nose, pharynx, larynx, trachea, bronchi, and non-alveolar bronchioles, and (b) the distal respiratory region (i.e., respiratory bronchioles, alveolar ducts, and alveoli).

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