Bronchopulmonary segments: A subdivision of one lobe of a lung based on the connection to the segmental bronchus. For example, the right upper lobe has apical, anterior, and posterior segments.
Bronchoscope: A thin, flexible instrument with a lighted viewing tube that is used to visualize the air passages to the lungs.
A procedure that permits the doctor to see the breathing passages through a lighted tube.
- Bronchospasm, exercise-induced
Bronchospasm, exercise-induced: Also called exercise-induced asthma, this is asthma that is triggered by vigorous physical activity. Exercise-induced asthma tends particularly to affect children and young adults (because of their high level of physical activity) but can occur at any age. Exercise-induced bronchospasm is initiated by the process of respiratory heat exchange (the fall in airway […]
Bronchus: A large air tube that begins at the end of the trachea and branches into the lungs. The supporting walls of the bronchus are made up in part of cartilage.
Brontophobia: An abnormal and persistent fear of thunder that causes undue anxiety even though sufferers realize that thunder itself poses no threat to them. When outdoors during a thunderstorm, they may suffer excessive anxiety. When indoors, they may hide under beds or desks, behind sofas, or in closets. “Brontophobia” is derived from the Greek “bronte” […]