[Blood supply and oxygen supply of localized portions of the mammary glands].
The quantitative analysis of the circulation system providing O2 transport to the mammary tissues in 34 non-lactating and 21 lactating albino mice SHR revealed that the average values of O2 tension in the alveolar complexes (43.3 +/- 14.4 torr) were 1.4 times higher and those of the blood flow (134 +/- 39 Ml/100 gxmin) 2.0-4.5 times higher than the corresponding values in the local sites of non-secreting mammary glands. Rhythmical changes of the blood flow and O2 tension revealed in the alveolar complexes, had the average period (50-55 min) corresponding to the duration of the secretory cycle. Asynchronous changes of these parameters in various local sites of the gland suggest continuous redistribution of the blood flow in the gland.
D000818:Animals; D001783:Blood Flow Velocity; D005260:Female; D007774:Lactation; D008321:Mammary Glands, Animal / Q000098:blood supply* / Q000378:metabolism; D051379:Mice; D008815:Mice, Inbred Strains; D010100:Oxygen / Q000032:analysis*; D010101:Oxygen Consumption; D010313:Partial Pressure; D011247:Pregnancy; D012039:Regional Blood Flow
D010100:Oxygen
Krovosnabzhenie i kislorodnoe obespechenie lokal'nykh uchastkov molochnoi zhelezy.