Chapter 7 A (Respiratory System) Flashcards
Adam’s apple
thyroid cartilage, supportive structure of the larynx
Adenoids
Collection of lymphoid tissue in the nasopharynx; pharyngeal tonsils
Alveolus
Air sac at the end of each bronchiole
Apex
Topmost section of the lung
Base
Bottom section of the lung
Bronchiole
Fine subdivision of the bronchi made of smooth muscle and elastic fibers
Bronchus
One of the two airways from the trachea to the lungs
Cilia
Hairlike extensions of a cell’s surface that usually provide some protection by sweeping foreign particles away
Diaphragm
Membranous muscle between the abdominal and thoracic cavities that contracts and relaxes during the respiratory cycle
Epiglottis
Cartilaginous flap that covers the larynx during swallowing to prevent food from entering the airway
External Nares
Nostrils; external opening at the base of the nose
Glottis
Part of the larynx consisting of the vocal folds of mucous membrane and muscle
Hilum (Hilus)
Midsection of the lung where the nerves and vessels enter and exit
Hypopharynx; laryngopharynx
Part of phayrnx below and behind the larynx
Intercostal muscles
Muscles between the ribs