Chapter 7 - The Respiratory System Flashcards
Adam’s apple, Thyroid cartilage
Thyroid cartilage, supportive structure of the larynx; larger in males than females
Adenoids
Collection of lymphoid tissue in the nasopharynx; pharyngeal tonsils
Alveolus (pl. alveoli)
Air sac at the end of each bronchiole
Apex
Topmost section of the long
Base
Bottom section of the long
Bronchiole
Fine subdivision of the bronchi made of smooth muscle and elastic fibers
Bronchus (pl. bronchi)
One of the two airways from the trachea to the lungs
Cilia
Hair-like extensions of the 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
Exhalation, expiration
Breathing out
External nares, nostrils
External openings at the base of the nose
External respiration
Exchange of air between the body and outside environment
Glottis
Part of the larynx consisting of the vocal folds of mucous membrane and muscle
hilum
Midsection of the lung where the nerves and vessels enter and exit
hypopharynx, Laryngopharynx
Part of the pharynx below and behind the larynx
Inferior lobe
Bottom lobe of the lung
Inhalation, inspiration
Breathing in
Intercostal muscles
Muscles between the ribs
Internal respiration
Exchange of oxygen and carbon dioxide between cells
Larynx, Voice box
Organ of voice production in the respiratory tract, between the pharynx and the trachea; voicebox
Lung
One of two organs of respiration in the thoracic cavity, where oxygenation of blood takes place
Mediastinum
Median portion of the thoracic cavity; septum between two areas of an organ or cavity
Middle lobe
Middle section of the right lung