The summer wind, came blowin in-from across the sea. It lingered there, so warm and fair-to walk with me. All summer long, we sang a song-and strolled on golden sand. Two sweethearts, and the summer wind. Like painted kites, those days and nights-went flyin by.
iron metabolism, a series of processes involved in the entry of iron into the body and its absorption, transport, storage, use in the formation of hemoglobin and other iron compounds, and eventual excretion.nce in the blood, iron cycles between the plasma and the reticuloendothelial or erythropoietic system. For hemoglobin synthesis, plasma iron is delivered to the normoblast, where it remains up to 4 months, trapped in the hemoglobin molecules of a mature red cell. Senescent red cells then deteriorate and break down.
Iron deficiency leads to anemia, a decrease in the oxygen carrying capacity of blood. However, too much iron in the body can be extremely toxic to tissues because it promotes the formation of free radicals. The majority of the body's iron is found in hemoglobin of developing and mature red blood cells.Of the remaining iron, a significant portion is stored in the liver, both in the hepatocytes, and in the Kupffer cells (also known as reticuloendothelial cells), a type of macrophage found in the liver. second signal depends upon the amount of iron in body stores. Iron absorption is stimulated if the level in body stores is low. These signals (and others) regulate iron absorption in the proximal duodenum, where iron is absorbed. An important player in this regulation is the recently discovered hormone hepcidin.