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
Larynx
organ of voice production in the respiratory tract, between the pharynx and the trachea; voice box
Mediastinum
Median portion of the thoracic cavity; septum between two areas of an organ or cavity
Nasopharynx
Portion of the throat above the soft palate
Oropharynx
Back portion of the mouth; a division of the pharynx
Palatine tonsils
Lymphatic tissue that works as part of the immune system
Paranasal sinuses
Area of the nasal cavity where external air is warmed by blood in the mucous membrane lining
Parietal pleura
Outer layer of the pleura
Pharyngeal tonsils
Adenoids; collection of lymphoid tissue in the nasopharynx
Pharynx
Passageway at back of mouth for air and food; throat
Pleura
Double layer of membrane making up the outside fo the lungs
Pleural cavity
Space between the two pleura
Septum
Cartilaginous division, as in the nose or mediastinum
Soft palate
Flexible muscular sheet that separates the nasopharynx from the rest of the pharynx
Trachea
Airway from the larynx into the bronchi; windpipe
Visceral pleura
Inner layer of the pleura
Vocal cords
Strips of epithelial tissue that vibrate and play a major role in the production of sound