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.
Secondary Growth & Cork Cambium. Primary growth in plants yields an outer layer known as the epidermis. In plants that don't have lateral growth, this layer is enough to help protect the plant's inner tissues. When a plant's stem gets thicker, however, this epidermis splits and falls off.