respiratory bronchiole — a short, thinner walled branch of a terminal bronchiole; it is the first segment of the bronchiole that contains alveoli and in which gas exchange occurs. It further subdivides, subsequent branches becoming narrower in diameter and increasing in… … Medical dictionary
Respiratory system — See also: Respiratory tract Respiratory A complete, schematic view of the human respiratory system with their parts and functions. Latin … Wikipedia
Respiratory tract — In humans the respiratory tract is the part of the anatomy that has to do with the process of respiration.The respiratory tract is divided into 3 segments: *Upper respiratory tract: nose and nasal passages, paranasal sinuses, and throat or… … Wikipedia
Respiratory tree — The respiratory tree describes the branching structure of the vertebrate lung. Beginning with the top of the respiratory system, the trachea, the order of branchings is as follows:* trachea ** main bronchus ***lobar bronchus **** segmental… … Wikipedia
Respiratory zone — The respiratory zone is the site of O2 and CO2 exchange with the blood.The respiratory bronchioles and the alveolar ducts are responsible for 10% of the gas exchange. The alveoli are responsible for the other 90%.The respiratory zone represents… … Wikipedia
respiratory disease — ▪ human disease Introduction any of the diseases and disorders that affect human respiration (respiration, human). Diseases of the respiratory system may affect any of the structures and organs that have to do with breathing, including the… … Universalium
bronchiole — One of approximately six generations of increasingly finer subdivisions of the bronchi, all less than 1 mm in diameter, and having no cartilage in its wall, but relatively abundant smooth muscle and elastic fibers. SYN: bronchiolus [TA].… … Medical dictionary
bronchiole — n. a subdivision of the bronchial tree that does not contain cartilage or mucous glands in its wall. Bronchioles open from the fifth or sixth generation of bronchi and extend for up to 20 more generations before reaching the terminal bronchioles … The new mediacal dictionary
Bronchiole — Infobox Anatomy Name = Bronchiole Latin = GraySubject = 240 GrayPage = 1098 Caption = Diagram of the alveoli with both cross section and external view. Caption2 = System = Precursor = MeshName = MeshNumber = DorlandsPre = Bronchioles DorlandsSuf … Wikipedia
terminal respiratory unit — the part of the lung distal to a single terminal bronchiole; it is the anatomical and functional unit of the lung and consists of a respiratory bronchiole, two or more alveolar ducts, and alveoli. Called also primary lobule of lung, pulmonary… … Medical dictionary
