Appraisals and Seller Concessions ... FHA Takes Note. In the summer edition of the Federal Housing Administration (FHA) Appraiser Newsletter, the FHA re-emphasizes the importance of appraisers correctly documenting any seller concessions on a property sale.
The outer layer (tunica adventitia) consists chiefly of connective tissue and is the thickest layer of the vein. As in arteries, there are tiny vessels called vasa vasorum that supply blood to the walls of the veins and other minute vessels that carry blood away.
Veins tend often to look collapsed or flattened under the same circumstances. In addition, the tunica media of veins is much thinner than in arteries, and the adventitia is the thickest layer. Identify the three layers of both arteries and veins and note the differences in thickness. Slide #174 In very large vessels, the adventitial layer (outer layer) will contain blood vessels (vasa vasorum) that supply the vessel wall.