[The role of the nervous factor in regulation of oxygen supply to the small intestine].
The experimental model of rat bilateral subdiaphragmatic stem vagotomy was used to study the role of parasympathetic nervous system in regulation of circulation and oxygen supply to the small intestine. Cut of the vagus nerves is shown to cause redistribution of the blood flow between gastroduodenal organs, to slow down local circulation, to reduce oxygen tension in the muscular lining of the jejunum, to raise water content in the wall and change magnetorelaxational characteristics. Morphologically this manifested in altered arteriolar and capillary configuration, dilation of the capacity microvessels, dystrophia of microvessel wall, red cell aggregation in capillaries and venules, defective permeability of the vascular wall. The above indices changed most 7 and 30 days after vagotomy. It is evident that impaired vagus innervation produces secondary circulation hypoxia in the small intestine.
Tsibulevskiĭ
A Iu
AIu
Dubovaia
T K
TK
Ettinger
A P
AP
Donskova
M D
MD
Sergeev
A I
AI
Petrenko
Iu M
IuM
Milovidova
N S
NS
D000818:Animals; D007583:Jejunum / Q000098:blood supply* / Q000294:innervation; D008297:Male; D008833:Microcirculation / Q000502:physiology; D010101:Oxygen Consumption; D010275:Parasympathetic Nervous System / Q000502:physiology*; D051381:Rats; D012039:Regional Blood Flow / Q000502:physiology; D013997:Time Factors; D014628:Vagotomy