[Effect of exogenic hypercapnia on external respiration and oxygen transport function of lungs]. 1980

M M Seredenko, and E V Rozova, and V P Pozarov, and T N Kovalenko

The functioning of the respiratory system and oxygen-transport function of the lungs were estimated in experiments on healthy people under the effect of exogenic hypercapnia. The external respiration is activated under conditions of hypercapnia of the given degree, an increase in the total and alveolar ventilation of the lungs testifies to this fact. Age differences are found in diffusive and specific diffusive capacity of the lungs for O2, which indicates to changes in the oxygen-transport function of the lungs. In teenagers the diffusive capacity of the lungs changes due to the gas-exchange surface area and in people of middle age - due to changes in the diffusive properties of the lungs air-blood barrier.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010101 Oxygen Consumption The rate at which oxygen is used by a tissue; microliters of oxygen STPD used per milligram of tissue per hour; the rate at which oxygen enters the blood from alveolar gas, equal in the steady state to the consumption of oxygen by tissue metabolism throughout the body. (Stedman, 25th ed, p346) Consumption, Oxygen,Consumptions, Oxygen,Oxygen Consumptions
D012119 Respiration The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration ( Breathing
D002245 Carbon Dioxide A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals. Carbonic Anhydride,Anhydride, Carbonic,Dioxide, Carbon
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006935 Hypercapnia A clinical manifestation of abnormal increase in the amount of carbon dioxide in arterial blood.
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000367 Age Factors Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time. Age Reporting,Age Factor,Factor, Age,Factors, Age

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