MICROANATOMY

Detailed explanation-1: -The formed elements are cells and cell fragments suspended in the plasma. The three classes of formed elements are the erythrocytes (red blood cells), leukocytes (white blood cells), and the thrombocytes (platelets).

Detailed explanation-2: -The formed elements include erythrocytes (RBCs), leukocytes (WBCs), and platelets (thrombocytes). They are formed mostly in the red bone marrow (not within the blood itself) and one of them, platelets, are circulating fragments of a much larger cell so referring to them as cells (even thrombocytes) is a misnomer.

Detailed explanation-3: -The production of formed elements, or blood cells, is called hemopoiesis. Before birth, hemopoiesis occurs primarily in the liver and spleen, but some cells develop in the thymus, lymph nodes, and red bone marrow.

Detailed explanation-4: -The formed elements are cells, cell remnants, and cell fragments in the blood. Red Blood Cells (RBCs or erythrocytes) make up more than 95% of the formed elements. A red blood cell in a section of capillary. Because they lack a nucleus and organelles, most RBCs in the bloodstream are not fully functional cells.

Detailed explanation-5: -Nourishment. Electrolytes. Hormones. Vitamins. Antibodies. Heat. Oxygen. Immune cells (cells that fight infection)