Homestatsis in Weightlessness (Gomeostaz v Usloviyakh Nevesomosti),
Abstract
A long exposure to weightlessness is accompanied by a 'readjustment' of a number of physiological processes due to disruption of reflexes from the muscles which support activity in the presence of gravity. At the same time, the activity of the muscles of the extremities, a powerful mechanism of extracardial regulation, is changed. The disappearance of hydrostatic pressure in weightlessness is accompanied by redistribution of the blood in the body and by a decrease in the mass of circulating blood. The sharp imbalance between the level of the circulating blood mass, necessary to support the main processes of metabolism, and the mass of circulating blood, stable for conditions of weightlessness, causes periodic and regularly alternating phenomena of polyurea and water retention. This phenomenon is accompanied by a distruption of the electrolyte balance in the body. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1970
- Accession Number
- AD0715507
Entities
People
- B. B. Egorov
Organizations
- United States Air Force School of Aerospace Medicine