THE EFFECT OF THE SYMPATHETIC VASOCONSTRICTOR FIBRES ON THE DISTRIBUTION OF CAPILLARY BLOOD FLOW IN THE INTESTINE.

摘要: Abstract : Experiments are described which show that a marked and well sustained reduction in intestinal capillary filtration coefficient (CFC) is induced by vasoconstrictor fibre stimulation. This decrease CFC considered to reflect widespread closure of precapillary sphincters with an obstruction the corresponding capillaries. India ink injections indicate this neurogenic flow particularly affects mucosa. The fact blood supply mucosa takes place concomitantly only moderate increase resistance suggests considerable redistribution within intestine. hemodynamic changes produced fibres intestine compared drastically different situation skeletal muscles. Some functional implication these findings briefly discussed, as possibility diverted submucosal shunt vessels. (Author)