[Joint functions of the gastrocnemius muscle's blood vessels in lesions of the ventral structures of the medulla oblongata].
Following bilateral electrolytic or chemical lesion of the neurons in rostral portion of the medulla oblongata ventral parts, a decrease in systemic arterial pressure, heart rate, precapillary resistance and perfusion pressure, postcapillary resistance and capillary hydrostatic pressure, was observed in the m. gastrocnemius vessels in cats, the capillary filtration coefficient increasing at that. Following chemical lesion of the neurons in caudal portion of the medulla oblongata ventral parts, a biphasic change of the AP and vascular resistance was observed in the m. gastrocnemius: their decrease within first 5 min was followed by their increase within next 120 min, the capillary filtration coefficient being decreased whereas capillary hydrostatic pressure increasing. No changes in the regional vascular capacity were found.
V A
VA
Ku'lchitskiĭ
B I
BI
Tkachenko
D000818:Animals; D001158:Arteries / Q000503:physiopathology; D001794:Blood Pressure; D002196:Capillaries / Q000503:physiopathology; D002415:Cats; D005260:Female; D006439:Hemodynamics; D006614:Hindlimb / Q000098:blood supply*; D008297:Male; D008526:Medulla Oblongata / Q000293:injuries*; D009132:Muscles / Q000098:blood supply*; D014655:Vascular Resistance
Sopriazhennye funktsii sosudov ikronovoĭ myshtsy pri razrushenii struktur ventra'lnykh otdelov prodolgovatogo mozga.