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Respiratory System

Respiratory System Anatomy

QuestionAnswer
What are the major structures of the upper respiratory tract? Nose, nasal cavity, sinuses, pharynx, and larynx.
What are the major structures of the lower respiratory tract? Trachea, bronchi, bronchioles, alveoli, and lungs.
What is the primary function of the nasal cavity? To filter, warm, and humidify incoming air.
What is the function of the pharynx in respiration? It serves as a passageway for air traveling from the nasal cavity to the larynx.
What structure prevents food from entering the trachea during swallowing? The epiglottis.
What is the function of the larynx? It houses the vocal cords and routes air and food into the proper channels.
What is the function of the trachea? It conducts air from the larynx toward the bronchi and lungs.
Into how many primary bronchi does the trachea divide? Two — a right primary bronchus and a left primary bronchus.
Where does gas exchange occur in the lungs? In the alveoli.
What are alveoli and why are they important? Alveoli are tiny air sacs where oxygen and carbon dioxide are exchanged between air and blood.
Created by: Dominique Daigl
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