[Transport in the vessel wall in early changes of arteriosclerosis]

In various model experiments the change of the surface was examined in arteries by means of grid electron microscopy. By means of a newly elaborated method the increased permeability was pursued. Lipofundin S and colloidal iron allow the observation of the plasma transport from the intima to the adventitia. In the adventitia lipofundin can be proved also in the adventitial lymphatic vellels. This confirms that the plasma after having leaved the arterial wall is drained through the lymphatic vessels of the adventitia.