Based on Your Knowledge of the Anatomy of the Lower

question 33

Multiple Choice

Based on your knowledge of the anatomy of the lower respiratory tract, where is the most likely location for an aspirated (inhaled) piece of food to lodge and why?

• A) The alveoli, because they reside at the terminal end of the bronchioles
• B) The tertiary bronchioles, because they are less than 1 mm wide
• C) The right bronchus, because it is slightly wider and more vertical than the left bronchus
• D) The carina, because it is situated at the end of the trachea

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Definitions:

Isotope

Forms of a specific chemical element distinguished by having identical proton counts yet varying quantities of neutrons within their cores.

Neutrons

Subatomic particles found in the nucleus of an atom with no electric charge.

Protons

Subatomic particles found in the nucleus of an atom, carrying a positive electrical charge.