[Blood supply of the adrenal gland in the domestic duck].

The Authors studied the arterial and venous vascularization of the duck adrenal gland. Thirty subjects of both sexes were used. Some were inoculated with plastic substance to obtain vasal casts. Others were perfused with Indian ink before the preparation of istological sections. The angioarchitecture of the adrenal glands presents some very interesting features with regard to both the arterious and the venous circulation. The former constitute two systems, superficial and deep, both participating in the formation of the sinusoidal network. The veins are represented by the adrenal vein and by a superficial vein. The latter has a larger diameter when in proximity of the organ smaller peripheral branches in connection with the flank region and with the penultimate intercostal space. The peculiar morphology of the superficial vein induces the Authors to retain that it is an afferent vein and that it may be considered as the adrenal portal vein.