[Development of vasomotor adrenergic innervation during onto- and phylogenesis].
Histochemical, biochemical and electron microscopic studies of vasomotor innervation in onto- and phylogenesis of vertebrates reveal basic trends in evolution of the adrenegric apparatus of the blood vessels. In evolutionary row of animals, together with the development of hemodynamics, constant development of vasomotor innervation takes place, which reveals itself in the increase of the density of the adrenergic plexus and its mediator content. It was demonstrated that nerve-muscle relationships in vascular wall are not constant and depend on the degree of contraction of vascular muscles. Also inconstant are intercellular contacts of plain muscle fibers, their number and total surface being also dependent on the degree of vascular constriction. It is suggested that rearrangement of nerve-muscle and intermuscular relationships within the vascular wall during contraction-relaxation cycle automatically affects functional parameters of the blood vessel and provides for autoregulation purposes.
D000320:Adrenergic Fibers; D000818:Animals; D001001:Anura; D001158:Arteries / Q000294:innervation; D005075:Biological Evolution; D001717:Birds; D002642:Chick Embryo; D005399:Fishes; D007798:Lampreys; D008322:Mammals; D009130:Muscle, Smooth / Q000294:innervation; D009469:Neuromuscular Junction / Q000648:ultrastructure; D011817:Rabbits; D014666:Vasomotor System / Q000033:anatomy & histology / Q000196:embryology / Q000254:growth & development*; D014680:Veins / Q000294:innervation
Razvitie sosudodvigatel'noĭ adrenergicheskoĭ innervatsii v onto- i filogeneze.