Respiratory System Key Terms

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located between the pharynx and trachea, has 9 layers of cartilage and contains the vocal chords.

Larynx

tube extending from larynx to the center of the chest.

Trachea

smallest branches of the bronchi.

Bronchiole

tube that divides after it leaves the trachea into the left and right bronchus.

Bronchi

tiny air sacs in the lungs where the exchange of carbon dioxide and oxygen occurs.

Alveoli

covers the larynx when swallowing.

Epiglottis

exchange of CO2 and O2 between the lungs and bloodstream.

External Respirations

measurement that includes tidal volume, inspiratory reserve, expiratory reserve, and residual air.

Total Lung Capacity

airways obstructed because of inflammatory reaction to stimulus.

Asthma

chronic lung condition such as emphysema or bronchitis.

Chronic Obstructive Pulmonary Disease

infection of the lung.

Pneumonia

partition between the two nasal cavities.

Nasal Septum

primary branches of trachea.

Bronchial Tubes

amount of air that moves in and out of the lungs with each breath.

Tidal Volume

inflammation of the bronchial tubes.

Bronchitis

a buildup of air within the pleural cavity on one side of the chest.

Pneumothorax

viral infection causing inflammation of the mucous membrane of the respiratory tract.

Influenza

situated within the rib cage, absorbs oxygen and releases CO2.

Lungs

three bones situated on the lateral side of the nasal cavity.

Turbinates

lung disorder in which inspired air becomes trapped and is difficult to expire.

Emphysema