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The spleen makes red blood cells during the time that the fetus is 9 to 28 weeks old, according to Dr. George Segel, a professor of pediatrics, medicine and oncology at the University of Rochester Medical Center writing in "Williams Hematology." The bone marrow is then the main site for making blood cells once the fetus is 28 weeks.


As you've seen, your spleen is often on the "front lines" of your body; in fact, your spleen is a busy organ – especially considering its small size. Your spleen's main function is to act as a filter for your blood. It recognizes and removes old, malformed, or damaged red blood cells.


The spleen, in healthy adult humans, is approximately 7 centimetres (2.8 in) to 14 centimetres (5.5 in) in length. It usually weighs between 150 grams (5.3 oz) and 200 grams (7.1 oz). An easy way to remember the anatomy of the spleen is the 1×3×5×7×9×11 rule.


4 major functions of the spleen. defense, hematopoiesis, red blood cell and platelet destruction, and service as a blood reservoir. Asplenia. rare congenital abnormality may be associated with congenital heart defect. If solitary, there are no complications. The liver may be visualized more distinctly to the left of the midline than usual


Spleen Definition. The spleen is a small organ, typically located on the left side of the body, behind the ribcage and stomach.It is the largest organ in the body’s lymphatic system, which is responsible for promoting immune function, filtering the blood, and managing blood volume.


The spleen serves two major functions in humans. First, it plays an important role in adaptive immunity; groups of B and T lymphocytes reside in the spleen. These white blood cells produce antibodies, fight bacteria and viruses and destroy infected cells.


WebMD's Spleen Anatomy Page provides a detailed picture, definition, and information about the spleen. Learn about its function, location in the body, and conditions that can affect the spleen.


The spleen is the largest organ in the lymphatic system. It is an important organ for keeping bodily fluids balanced, but it is possible to live without it. The spleen is located under the ribcage ...


The spleen is an abdominal organ found near the upper-left part of the stomach. Its three functions are to produce lymphocytes, remove red blood cells and act as a reservoir for blood.


Function of spleen. Spleen is the largest lymphatic organ in a human body and it is important for many functions. The most important are proliferation and differentiation of lymphocytes and destruction of erythrocytes. It also serves as storage of blood which can be used in hypovolemia ...