In dogs subjected to gravitational overloadings (+Gx) according to a special training schedule the wall structure of the main arteries (carotid, humeral, femoral and aorta) was studied by histological methods. The amount of catecholamines (adrenaline and noradrenaline) in the venous blood plasma and in the adrenal tissue was the index of the sympathoadrenal system condition. It was demonstrated that in trained animals the tolerance threshold to continuously increasing overloadings (+Gx) rose.
View Article and Find Full Text PDFFiziol Zh SSSR Im I M Sechenova
May 1976
In cats, the low-molecular indicator: radioactive phosphorus, and the tonography revealed that the local application of acetylcholine accelerates the fluid exchange in the intact eye, considerably facilitating the outflow. Noradrenaline and the threshold stimulation of the cervical sympathetic nerve slow down the intraeye fluid exchange, decreasing the outflow. The data obtained suggest that the neural regulation of the eye hydrodynamics involves, mainly, a direct effect of the vegetative innervation on the eye drainage system.
View Article and Find Full Text PDFFiziol Zh SSSR Im I M Sechenova
September 1974
Fiziol Zh SSSR Im I M Sechenova
August 1973
Fiziol Zh SSSR Im I M Sechenova
January 1973