[Microvascularization of the thymus gland in birds. Research in Gallus gallus]

The microcirculation of thymic lobule has been studied. The vascular feature is markedly different compared with mammalian thymic circulation. Only one artery trunk, the intralobular thymic artery branching off from intralobular artery has been evidentiated. Interlobular arter penetrates the lobule and originates a bed of narrow thin-walled capilary network, thinner in the pheriphery.