Evaporation of water at the level of bronchial and alveolar structures

Journal Article · Sat Mar 01 00:00:00 EST 1986 · Dokl. Biol. Sci. (Engl. Transl.); (United States)

OSTI ID:5721297

Belyakov, N A; Serikov, V B; Gevirts, V B

The authors' goal in this paper is to investigate the role of the bronchi and alveoli in the evaporation of water by the lungs. The authors sought to determine whether the most distal segments of the respiratory tract, the alveoli, are involved in the mass exchange of water. In order to determine the quantity of water evaporated by the lungs, the exhaled air was cooled to 0/sup 0/C. The amount of condensate was determined gravimetrically during a 15-minute interval. Added to the perfusate was 1 cm/sup 3/ tritiated water of 4 x 10/sup 6/ Bq total activity; as a result of dilution, the activity of the perfusate comprised 0.5 x 10/sup 4/ Bq/cm/sup 3/. The radioactivity of the perfusate and condensate was determined by liquid scintillation radiometry on an RZhB-3-01 apparatus. The lungs were ventilated with atmospheric air or a dry gas mixture of 80% nitrogen and 20% oxygen.

• Research Organization: S. M. Kirov State Institute for the Advanced Training of Physicians, Leningrad, USSR
• OSTI ID: 5721297
• Journal Information: Dokl. Biol. Sci. (Engl. Transl.); (United States), Vol. 284:1-6; Other Information: Translated from Dokl. Akad. Nauk SSSR; 284: No. 4, 1002-1004(Oct 1985)
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
BRONCHI
BIOLOGICAL FUNCTIONS
RADIOASSAY
LUNGS
WATER
EVAPORATION
AIR
BODY TEMPERATURE
LIQUID SCINTILLATION DETECTORS
MOISTURE
PERFUSED TISSUES
SCINTILLATION COUNTING
THERMOREGULATION
TRITIUM COMPOUNDS
VAPOR CONDENSATION
WATER VAPOR
ANIMAL TISSUES
BODY
CONTROL
COUNTING TECHNIQUES
FLUIDS
FUNCTIONS
GASES
HYDROGEN COMPOUNDS
LABELLED COMPOUNDS
MEASURING INSTRUMENTS
ORGANS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
RADIATION DETECTORS
RESPIRATORY SYSTEM
SCINTILLATION COUNTERS
TEMPERATURE CONTROL
TISSUES
VAPORS
551001* - Physiological Systems- Tracer Techniques