blood is correctly classified as a
Blood is a highly specialized, fluid tissue. Blood is traditionally classified as a specialized form of connective tissue. To appreciate the basic unity of blood and other varieties of connective tissue, consider the following.1  All of the several blood cell types originate in the connective tissue of bone marrow.ecause blood is so easily sampled, and because many readily observable features of blood are altered in specific ways by disease processes, examination of blood cells can be extremely informative. Modern laboratories provide automated analysis in the form of a CBC, or complete blood count.