[Effect of the sympathetic nervous system on local physical and chemical mechanisms of regulating circulation in skeletal muscles].
In healthy subjects and in patients with beginning hypertension the blood flow in the forearm muscles was studied in resting as well as in hyperemia induced with excitation of the sympathetic nervous system. The blood flow and the hyperemia proved to be considerably smaller in the patients whereas the blood flow in mental stress was much greater in them as compared to healthy subjects. In emotional stress, the hyperemia considerably decreased in healthy subjects. In maximal vasodilatation induced with cessation of blood flow in limbs, the reflex vasoconstrictory responses were preserved. The data obtained suggest sympathetic influences upon the induced hyperemia and deny the phenomenon of functional sympatholysis.
D001794:Blood Pressure; D005542:Forearm; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D009132:Muscles / Q000098:blood supply*; D010146:Pain / Q000503:physiopathology*; D010991:Plethysmography; D013315:Stress, Psychological / Q000503:physiopathology*; D013564:Sympathetic Nervous System / Q000503:physiopathology*; D014655:Vascular Resistance; D014661:Vasoconstriction
Vliianie simpaticheskoĭ nervnoĭ sistemy na mestnye fizicheskie i khimicheskie mekhanizmy reguliatsii krovoobrashcheniia v skeletnykh myshtsakh.