[Characteristics of vasomotor responses in the cat skeletal muscles and skin during heat stress].
In anesthetized cats, resistography and the volumometry of extracorporeal blood flow revealed that even the first stages of hyperthermia decreased the resistance and increased the compliance of the skin venous vessels, whereas an essential increase in the resistance of skeletal muscles' arterial vessels only occurred in marked hyperthermia. The compliance of skeletal muscles' venous vessels underwent no considerable changes in hyperthermia. The data obtained suggest a significant redistribution of the blood flow and blood volume among the skin and muscles vessels during heat stress. The observed differences in the rate of development of the above responses suggest participation of different mechanisms in their formation.
D000818:Animals; D001794:Blood Pressure; D001831:Body Temperature; D002415:Cats; D006339:Heart Rate; D006359:Heat Exhaustion / Q000503:physiopathology*; D006439:Hemodynamics; D009132:Muscles / Q000098:blood supply*; D012867:Skin / Q000098:blood supply*; D014655:Vascular Resistance; D014666:Vasomotor System / Q000503:physiopathology*
Kharakteristika vazomotornykh reaktsiĭ v skeletnykh myshtsakh i kozhe u koshek pri teplovom stresse.