title: [Characteristics of the microcirculatory bed of the gastrocnemius muscle of rats under conditions of weightlessness].
abstract: Quantitative histological investigations of capillaries in the gastrocnemius muscle of rats after 18.5 days on board the artificial satellite "Cosmos-936" have demonstrated that the number of functioning capillaries decrease by about 30% under conditions of weightlessness. Decrease in the number of functioning capillaries in the gastrocnemius muscle is also observed in animals subjected to artificial gravitation (acceleration 1 g) during the flight. The main role in lowered blood supply of the muscles is supposed to play the lack of kinetic but not static loading on the muscles.
mesh_terms: D000818:Animals; D002196:Capillaries / Q000473:pathology / Q000503:physiopathology*; D007866:Leg / Q000098:blood supply; D008297:Male; D008833:Microcirculation; D009069:Movement Disorders / Q000473:pathology / Q000503:physiopathology; D009132:Muscles / Q000098:blood supply*; D051381:Rats; D014893:Weightlessness
vernacular_title: Osobennosti mikrotsirkuliatornogo rusla v ikronozhnoĭ myshtse krys, nakhodivshikhsia v nevesomosti.