what part of the red blood cell is "Recycled" by the spleen?
465870
Iron from the hemoglobin
216669
It is a protein that is present inside the red blood cells.
76097
blood, fluid pumped by the heart that circulates throughout the body via the arteries, veins, and capillaries (see circulatory system; heart). An adult male of average size normally has about 6 quarts (5.6 liters) of blood. The blood carries oxygen and nutrients to the body tissues and removes carbon dioxide and other wastes. The colorless fluid of the blood, or plasma, carries the red and white blood cells, platelets, waste products, and various other cells and substances
1010746
Blood cells are produced in the bone marrow; the process is termed hematopoiesis. The proteinaceous component is produced overwhelmingly in the liver, while hormones are produced by the endocrine glands and the watery fraction maintained by the gut and the kidney.\nBlood cells are degraded by the spleen and the Kupffer cells in the liver. The liver also clears proteins and amino acids. The kidney secretes many small proteins into the urine. Erythrocytes usually live up to 120 days before they are systematically replaced by new erythrocytes created by the process of hematopoiesis.
134260
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.
8023
Most blood transfusions are of packed red cells and not serum/platelets or white cells.  Red cells have no nuclei/genetic material.  Blood type and rH factor are important and mismatch can yield a type of rejection.  The white cells are ultimately "rejected"   In someone with an inactive immune system (chemo patient) the blood can attack the recepient!
1146799
"The spleen is a ductless, vertebrate gland that is closely associated with the circulatory system, where it functions in the destruction of old red blood cells in holding a reservoir of blood. It is regarded as one of the centres of activity of the reticuloendothelial system. Until recently, the purpose of the spleen was not known. It is increasingly recognised that its absence leads to a predisposition to certain infections."
781273
Here is what i could fined but i was unable to find anything on the leaf eperdemal cells.\n\nA red blood cell is - a cell in the blood of vertebrates that transports oxygen and carbon dioxide to and from the tissues\n\nprotozoans - Any of a large group of single-celled, usually microscopic, eukaryotic organisms, such as amoebas, ciliates, flagellates, and sporozoans.\n\nPhloem - the part of a vascular bundle consisting of sieve tubes, companion cells, parenchyma, and fibers and forming the food-conducting tissue of a plant. \n\nMuscle cells - an elongated contractile cell that forms the muscles of the body\n\n Xylem -a compound tissue in vascular plants that helps provide support and that conducts water and nutrients upward from the roots, consisting of tracheids, vessels, parenchyma cells, and woody fibers.
812771
We frequently remove the spleen both from injury but also as a means of treating other illnesses such as thrombotic thrombocytopaenia purpura. It is not necessary to replace the spleen as it is basically a recycling center of hemoglobin. There are very few side effects but we may wish to check your blood count from time to time to insure that your iron levels are fine.
872210
Red blood cells, for one. G1, I think. I see inter-phase above; sounds right.
497817
they do have a nucleus when they are still being formed in the red bone marrow, but once they are mature enough the nucleus is excluded so that there is maximum room to store-hole hemoglobin in the rbc.  less than 1% of rbcs are found in the cirulation-blood.  If more than that,it is indicative of disease and needs to be treated since rbcs with nucleii can't carry oxygen, are too big,and get squished-damaged in the capillaries.  Without a nucleus they can fit single file and go thru without getting too beat up-bruised and live their usual life of 120 days.
887309
Hi\n\nBlood Cells      \nBlood contains several different types of cells. Some cells, such as red blood cells, carry oxygen to other cells. Other types of cells, such as white blood cells or leukocytes, provide protection from foreign cells and infectious agents. Cell fragments called platelets provide protection against bleeding. The red blood cells of different animals can have different structures.  \n \nSheep red blood cells  \nIndividual red blood cells from a sheep appear colorless when viewed under a microscope. (Images of individual human, sheep, and zebrafish red blood cells were taken at the same magnification and appear to scale.) \n \nZebrafish red blood cells  \nIndividual red blood cells from a zebrafish appear colorless when viewed under a microscope. \n \nField of human red blood cells  \nIndividual disk-shaped red blood cells appear colorless when viewed under a microscope. The pink tint on the left of the image is due to clotting of several layers of red blood cells. \n \nHuman white blood cell - phagocytosis  \nHuman white blood cells engulf green fluorescent particles in a process called phagocytosis. In our bodies, these cells phagocytose invading organisms, such as bacteria, to fight infection.  \n\nHuman white blood cells  \nWhite blood cells are an important part of our immune system, moving to sites of infection to engulf and destroy microbes. In this movie, white blood cells crawl along a glass slide. Disk-shaped red blood cells can be seen floating in the frame. \n \nRed Blood Cells:\nThe red blood cells are also known as erythrocytes. The red blood cells have a unique appearance. They have been described as looking like a donut because they are thinner in the center and thicker around the edges. They are very flexible with the ability to twist and bend through the blood vessels. The red blood cells are only 1/25,000 of an inch in size.\n\nA major function of the red blood cells is to carry oxygen to all the tissues from the lungs. The red blood cells than transport the carbon dioxide from the cells because of breaking down the nutrients\n\nThe reason the erythrocytes are known as red blood cells is because of a substance called hemoglobin. Hemoglobin is composed of simple protein and iron pigments and when combined with oxygen their color becomes a bright scarlet.\n\nRed blood cells are made in the red bone marrow. In infants every bone in their body produces red blood cells. In the adult the red blood cells can be produced in the thoracic bones, vertebrae, cranial bone and ends of femur and humerus bones. Red blood cells only live for approximately 120 days. The blood contains about 25 trillion red blood cells and has to replace them at about 3 million per second. If for some reason there is a red blood cell deficiency a problem called anemia can arise.\n\nanother structures is Chemical structure of red blood cells\n\nStill more is there to share.   If i find time, i can able to give more inputs on this.\n\nRgds/Venky, Chennai
284453
Red blood cells are red only because they contain a protein chemical called hemoglobin which is bright red in color. Hemoglobin contains the element Iron, making it an excellent vehicle for transporting oxygen and carbon dioxide. As blood passes through the lungs, oxygen molecules attach to the hemoglobin. As the blood passes through the body's tissue, the hemoglobin releases the oxygen to the cells. The empty hemoglobin molecules then bond with the tissue's carbon dioxide or other waste gases, transporting it away.
717618
The kidneys filter the blood, produce urine, and reabsorb vital electrolytes.  The spleen destroys old blood cells and plays a part in the immune system.
639140
It doesn't rupture BECAUSE it gathers dead cells. It's physiologic role is to gather dead cells. It usually ruptures in car accidents or similar violent accidents. The resulting hemorhage can be very dangerous and there are several urgent surgical techniques to repair it (interestingly, one of them is to use ... super glue, aka cyanoacrylate glue). If repair is impossible, the spleen is removed and the patient is afterwards at considerable risk for some infections, particularly by Pneumoniococcus. \n\nTo answer another question, the spleen "fills" with dead red blood cells (and many other dead cells) because it acts as a filter. It keeps the useful stuff (iron), removes "debris" from the blood and digests the remains of dead cells. \n\nThe accumulation of dead red cells can destroy the spleen (WITHOUT RUPTURING IT) by "clogging" it. This usually happens to people with Sickle Cell anemia, whose cells tend to form aggregates.
335803
Mature human RBC have no nucleus.\n\nMuscle cells have several, as a result of cells fusing together.
761625
The red blood cells have a special oxygen transport molecule called hemoglobin. It has an iron atom in the middle of it that binds to the oxygen very loosely in the lungs where oxygen is plentiful. Then, when the red blood cell reaches tissue that has a low oxygen concentration, the loosely bound oxygen dissociates from the hemoglobin, ready to be used by the cells in the body.\n\nThe right side of the heart pumps blood to the lungs where the oxygen is picked up. Then the blood goes back to the left side of the heart to be pumped out to the rest of the body so the oxygen can be delivered.