[Changes in transcapillary fluid exchange in the small intestine in response to reflex activation of the vagus nerves].

In acute experiments on cats under conditions of autoperfusion of hemodynamically isolated small intestine, stimulation of vagal afferent fibers altered the capillary hydrostatic pressure depending on the perfusion regimen: the pressure decreased in stabilized blood expenditure and increased in constant pressure perfusion. The capillary filtration coefficient in these conditions increased irrespective of the blood supply of the intestine. The reflex activation of n. n. vagi induced changes of pre- and postcapillary resistance determining the level of capillary hydrostatic pressure and the corresponding shifts of the small intestine filtration-absorption function.