Respiratory System Vocabulary- Chapter 12

Gas produced by body cells when oxygen and food combine; exhaled through the lungs.

Thin hairs attached to the mucous membrane epithelium lining the respiratory tract. They clear bacteria and foreign sunstances from the lung. Cigarette smoke impairs the function of cilia.

Muscle separating the chest and abdomen. It contracts and relaxes to make breathing possible

Lid-like piece of cartilage that covers the larynx, preventing food from entering the larynx and trachea during swallowing

Breathing out (exhalation)

Slit-like opening to the larynx

Midline region where the bronchi, blood vessels, and nerves enter and exit the lungs. Hilar means pertaining to (at) the hilium.

Breathing in (inhalation)

Voice box; containing the vocal cords

Division of the lung

Region between the lungs the chest cavity. It contains the trachea, heart, aorta, esophogus and bronchial tubes.

Openings through the nose carrying air into the nasal cavities.

Gas that passes into the bloodstream at the lungs and travels to all body cells

One of a pair of almon-shaped masses of lymphatic tissue in the oropharynx (palatine means pertaining to the roof of the mouth)

One of the air cavities in the bones near the nose