What are the functions of red and yellow bone marrow?
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Marrow (both red and yellow) is a soft, net-like mass of connective tissue that occupies the spaces within the medullary cavities of long bones, in the irregular spaces of spongy bone, and in the larger central canals of compact bone tissue. It also may include stem cells. \n\nRed Marrow functions in the formation of red blood cells (erythrocytes), white blood cells (leukocytes), and blood platelets. \n\nYellow Marrow stores fat and is inactive in blood cell production.
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Red blood cell (RBC) count. Red blood cells carry oxygen from the lungs to the rest of the body. They also carry carbon dioxide back to the lungs so it can be exhaled. If the RBC count is low (anemia), the body may not be getting the oxygen it needs. If the count is too high (a condition called polycythemia vera), there is a risk that the red blood cells will clump together and block tiny blood vessels (capillaries).
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The spleen is a gland that is associated with the circulatory system, where it functions in the destruction of old red blood cells in holding a reservoir of blood.
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One is that the red bone marrow will increase its erythropoeisis (AKA RBC production) Some very competative athletes have been known to go train for months at high altitude to increase their RBC count and thus O2 carrying capacity. (nutrition must be good, iron, folic acid and B12)  Then when the sport event comes, they go down to lower altitude to compete for the event and have more RBCs than the rest of the contestants,thus possibly giving them a biological edge over others.
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if you're not making red blood cells, there may be a problem with your bone marrow - bone marrow is where you synthesize new red blood cell. Don't worry. Talk to your doctor about it & ask them about a drug called Erythropoietin Alpha. It's a synthetic form of a hormone that your body produces to stimulate the production of ned RBCs. \n\nGood luck. Also, eat plenty of red meat!
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1. framework that supports the body: muscles and tendons attach to skeleton.\n2. protects internal organs including brain\n3. contains & protects red bone marrow; production of red blood cells and white blood cells\n4. Provides storage for inorganic salts such as calcium: regulates amount of calcium in blood stream.
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Without a nucleus there is more room for haemoglobin and therefore a greater oxygen-carrying capacity.\nThe consequence is that red blood cells have a short life span; they are constantly being broken down and the parts recycled (except the haem bit which is got rid of into the gut).\nSince the red blood cells have a short life span they must continually be replaced. You can see the importance of a good supply of iron in our diet.\nYou might like to ponder over the diet of new-born mammals - there is no iron in milk.
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The skeletal system:\n1. supports the body\n2. protects the soft internal organs\n3. works together with muscles to produce body movement\n4. produces calcium salts (particularly calcium phosphate) and the bone marrow produces red blood cells
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The process by which the formed elements of blood develop is called hemopoiesis or hematopoiesis.Before birth,hemopoisis first occurs in the yolk sac of an embryo and later in the liver ,spleen, thymus and lymph nodes of a fetus.\n\nRed bone marrow is a highly vascularized connective tissue located in the microscopic spaces between trabeculae of spongy bone tissue.About 0.05-0.1% of red bone marrow cells are derived from mesenchymal cells called pluripotent stem cells.these cells have the capacity to develop into several different types of cells.\nStem cells in red bone marrow reproduce themselves,proliferate and differentiate into cells that give rise to blood cells,marcophages,reticular cells,mast cells and adipocytes.\n\nIn order to form blood cells,pruripotent stem cels in red bone marrow produce two further types of stem cells,called myeloid stem cells and lymphoid stem cells.\nMyeloid stem cells begin their development in the red bone marrow and give rise to red blood cells ,platelets, monocytes, neutrophils,eosinophils abd basophils.\nLymphoid cells begin thier development in red bone marrow but complete it in lymphatic tissues,they give rise to the lymphocytes.\n\nHope this helps ya.Please check my spelling coz i think i misspelled some words in there.
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Simplified explanation: The blood cells are formed from stem cells in the bone marrow. Many of the various proteins in the blood are formed in the liver. The liquid part of the blood is formed from the liquid you drink and is filtered by the kidneys.
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Based on the 2 conditions above, there are 4 functions.\n\nDigestive:\n\n * Production of Bile\n\nBile contains bile salts which help emulsify lipids (fats) into small oil globules.  Remember, Bile does not digest fats.  It 'chops' up fat in to smaller molecules so as to increase the surface area for enzymatic reactions.--> faster\n\n\n\nExcretory:\n\n * Deamination of excess protein (amino acids)\n\nThe toxic amino group is removed, converted to urea and is passed to the kidneys to be excreted.\n\n\n * Breakdown of red blood cells\n\nAlthough most of the breakdown of the RBCs occur in the spleen, products from the RBCs are sent to the liver for storage purposes.\n\n\n* Detoxification\n\nSolid matter are broken down by phagocytosis.  Bio-chemical conversion of soluble substances (e.g. drugs, alcohol) into harmless substances
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Yellow: POW/MIA, Equality, Suicide Prevention\nRed: AIDS, Alcohol Abuse, Heart Disease, Lymphoma\nSilver: Parkinson's\nTeal: Sexual Assault\nBlue: Eating Disorders, Prostate Cancer, Child Abuse\nOrange: Leukemia, Hunger\nPurple: Domestic Violence\nWhite: Victims of Terrorism\n\nThere are so many...
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Red blood cells consist of a selectively permeable plasma membrane, cytoplasm, and hemoglobin.  Antigens on the surface are responsible for blood groups such as ABO and Rh.\n\nWhite blood cells do not have hemoglobin, but do contain nuclei.  WBC also have surface proteins called major histocompatibility antigens.\n\nPlatelets are fragments of large cells that have been enclosed by a piece of cell membrane.  Platelets do not contain a nucleus, but do contain granules that play a role in blood clotting.\n\nPlasma is the straw colored liquid left when the formed elements of blood are taken out.  It is composed of albumins, globulins, and fibrinogen.
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Red blood cells are the most common type of blood cell and are the vertebrate body's principal means of delivering oxygen from the lungs or gills to body tissues via the blood.\n\nRed blood cells are also known as RBCs or erythrocytes (from Greek erythros for "red" and kytos for "hollow", with cyte nowadays translated as "cell"). A schistocyte is a red blood cell undergoing fragmentation, or a fragmented part of a red blood cell.\n\n\nThe diameter of a typical human erythrocyte disk is 6–8 µm; they are thus much smaller than most other human cells. A typical erythrocyte contains about 270 million hemoglobin molecules, with each carrying four heme groups.\n\nAdult humans have roughly 2–3 × 1013 red blood cells at any given time (women have about 4 million to 5 million erythrocytes per cubic millimeter (microliter) of blood and men about 5 million to 6 million; people living at high altitudes with low oxygen tension will have more). Red blood cells are thus much more common than the other blood particles: There are about 4,000–11,000 white blood cells and about 150,000–400,000 platelets in a cubic millimeter of human blood. The red blood cells store collectively about 3.5 grams of iron; that's more than five times the iron stored by all the other tissues combined.\n\nThe process by which red blood cells are produced is called erythropoiesis. Erythrocytes are continuously being produced in the red bone marrow of large bones. (In the embryo, the liver is the main site of red blood cell production.) The production can be stimulated by the hormone erythropoietin (EPO), which is used for doping in sports. Erythrocytes develop in about 7 days and live a total of about 120 days. The aging cells swell up to a sphere-like shape and are engulfed by phagocytes, destroyed and their materials are released into the blood. The main sites of destruction are the liver and the spleen. The heme constituent of hemoglobin is eventually excreted as bilirubin.\n\nThe blood types of humans are due to variations in surface glycoproteins of erythrocytes.\n\nRed blood cells can be separated from blood plasma by centrifugation. During plasma donation, the red blood cells are pumped back into the body right away, and the plasma is collected. Some athletes have tried to improve their performance by doping their blood: First about 1 liter of their blood is extracted, then the red blood cells are isolated, frozen and stored, to be reinjected shortly before the competition. (Red blood cells can be conserved for 5 weeks at −78 °C.) This practice is hard to detect but may endanger the human cardiovascular system which is not equipped to deal with blood of the resulting higher viscosity\n\n\nDiseases and diagnostic tools\n \nAffected by Sickle-cell disease, red blood cells alter shape and threaten to damage internal organs.Blood diseases involving the red blood cells include:\n\nAnemias (or anaemias) are diseases characterized by low oxygen transport capacity of the blood, because of low red cell count or some abnormality of the red blood cells or the hemoglobin. \nIron deficiency anemia is the most common anemia; it occurs when the dietary intake or absorption of iron is insufficient, and hemoglobin, which contains iron, cannot be formed \nSickle-cell disease is a genetic disease that results in abnormal hemoglobin molecules. When these release their oxygen load in the tissues, they become insoluble, leading to mis-shaped red blood cells. These sickle shaped red cells are rigid and cause blood vessel blockage, pain, strokes, and other tissue damage. Specifically, Sickle-cell disease is due to a mutation of the Glu-6 residue to Val-6 on the outside of the hemoglobin protein; this change from a polar, charged amino acid to a hydrophobic amino acid causes the structural change seen in Sickle red blood cells. \nThalassemia is a genetic disease that results in the production of an abnormal ratio of hemoglobin subunits
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What exactly do u mean by phenotype?  I can tell you that bone marrow stem cells are the progenitors for osteoclasts, osteoblasts, and erythrocytes.
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These are cells in our blood that protect us from germs. They are like microscopic soldiers who kill the germs whenever a germ enters your body. \n\nWhite blood cells have a number of roles in the immune system, including antibody production, attacking and destroying cancer cells, and producing substances that kill cancer cells. They are also called lymphocytes.
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At birth, all bone marrow is red. As we age, most of it is transformed into yellow marrow by the addition of fat cells. Red marrow produces red blood cells, platelets, and certain white blood cells. It fills the cavities of many bones, especially long bones. By adolescence, most of our marrow is yellow. In an adult, red marrow is only found on the proximal epiphysis of long bones, in vertebral bodies, sternum, ribs, and bones of the cranium. If necessary, yellow marrow can be stimulated to produce new red blood cells. Red blood cells only live about 120 days, after which they are replaced and recycled. Every day, the liver destroys about the same number of red blood cells as bone marrow creates to maintain a balance.