the ratio of the amount of carbon dioxide released by the lungs to the amount of oxygen taken in during a given period.
(biology) the ratio of the volume of carbon dioxide expired to the volume of oxygen consumed by an organism, tissue, or cell in a given time
respiratory quotient n.
The ratio of carbon dioxide produced by tissue metabolism to oxygen consumed in the same metabolism.
- Respiratory scleroma
respiratory scleroma n. Rhinoscleroma in which the lesion involves the mucous membrane of much or all of the upper respiratory tract.
- Respiratory syncytial virus
noun 1. a myxovirus causing infections of the nose and throat, esp in young children. It is thought to be involved in some cot deaths RSV respiratory syncytial virus n. Abbr. Rs virus An RNA-containing virus that causes minor respiratory infections in adults and bronchitis and bronchopneumonia in children. respiratory syncytial virus (rěs’pər-ə-tôr’ē) A virus […]
noun, Anatomy. 1. the system by which oxygen is taken into the body and an exchange of oxygen and carbon dioxide takes place; in mammals the system includes the nasal passages, pharynx, trachea, bronchi, and lungs. respiratory system noun 1. the specialized organs, collectively, concerned with external respiration: in humans and other mammals it includes […]
- Respiratory tract
respiratory tract n. The air passages from the nose to the pulmonary alveoli, including the pharynx, larynx, trachea, and bronchi. respiratory tract definition The path that air follows as it is inhaled and directed into the lungs. The respiratory tract includes the nose and nasal passages, the throat and trachea, and the bronchial tubes.