respiratory system

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respiratory system
A. lung
B. bronchial tubes
C. nose
D. mouth
E. trachea
F. diaphragm

respiratory system

n.
The system of organs and structures, such as lungs in mammals and gills in fish, involved in the exchange of oxygen and carbon dioxide between an organism and its environment.

respiratory system

n
(Anatomy) the specialized organs, collectively, concerned with external respiration: in humans and other mammals it includes the trachea, bronchi, bronchioles, lungs, and diaphragm

res′piratory sys`tem


n.
the system of organs and tissues involved in drawing oxygen into the body and removing carbon dioxide: in mammals, includes the nasal cavity, pharynx, trachea, bronchi, lungs, and the diaphragm.
[1935–40]
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respiratory system

res·pi·ra·to·ry system

(rĕs′pər-ə-tôr′ē)
The system of organs and structures in which gas exchange takes place, consisting of the lungs and airways in air-breathing vertebrates, gills in fish and many invertebrates, the outer covering of the body in worms, and specialized air ducts in insects.

respiratory system

In humans, the mouth, nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli, and lungs.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.respiratory system - the system for taking in oxygen and giving off carbon dioxiderespiratory system - the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing
body, organic structure, physical structure - the entire structure of an organism (an animal, plant, or human being); "he felt as if his whole body were on fire"
system - a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion"
respiratory tract, airway - the passages through which air enters and leaves the body
respiratory organ - any organ involved in the process of respiration
trachea - one of the tubules forming the respiratory system of most insects and many arachnids
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