Where in the body is blood produced?

I'm pretty sure white blood cells are made in bone marrow. But what about plasma, red blood cells etc?

If you can provide it, a good place/site to find this info would be appreciated as well.

10 Answers

  • 10 years ago
    Favourite answer

    All blood cells begin in the bone marrow, including red. As far as plasma, it's not 'produced' but rather created in place. Plasma is made up of mostly water which is absorbed from the intestines and the proteins of the plasma are produced in the liver.

    *T-cells are white blood cells that proliferate in the thymus, but the cells that make up the thymus/T-cells began in the bone marrow and migrate to the thymus before birth.

  • 4 years ago

    Where Is Blood Produced

  • 5 years ago

    This Site Might Help You.


    Where in the body is blood produced?

    I'm pretty sure white blood cells are made in bone marrow. But what about plasma, red blood cells etc?

    If you can provide it, a good place/site to find this info would be appreciated as well.

    Source(s): body blood produced: https://biturl.im/HpQ3F
  • 5 years ago

    For the best answers, search on this site https://shorturl.im/avUVv

    RBC - thru haematopoiesis. this is occurring at all times in ur body WBC, platelets - in bone marrow but from different cells Plasma - water from inside cells move out to replace the lost plasma Water and iron are mainly from ur diet. but ur body will have a store of both at all times But u have to rmb tt nose bleed and all tt don't cause a big blood loss as u think... the body won't exactly feel the loss.

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  • 10 years ago

    All blood cells are produced in the bone marrow. Bone marrow is pretty much just a mass of stem cells which become the various blood cells as they mature.

  • 10 years ago

    Although, there are different components of the blood, they are subdivided into two: the formed elements (cells and cell fragments; referring to Erythrocytes or RBC, Leukocytes or WBC and Thrombocytes or platelets) and the liquid component known as the plasma.

    As you know, plasma is made up of 91% water and the rest attributes to proteins and other substances.

    Now, i will concentrate on the formed elements.

    Did you know that blood cell production is known as hematopoeisis?

    Anyway, all formed elements of blood are derived from a single cell commonly called as stem cells or hemocytoblasts. These hemocytoblasts give rise to the RBC, WBC, and platelets. Under specific growth factors, these cells undergo differentiation and fully develop into new and varying cells with specialized functions.

    *Initially, the hemocytoblasts could become a Proerythroblast which develop into a Red blood cell. In its late erythroblast stage the cell looses its nucleus and other organelles. After completely loosing all its accessory or unnecessary organelles, it becomes a Reticulocyte after which it becomes a Red blood cell.

    *Another type of cell which results from differentiation is the Myeoblast. This further divides into a Progranulocytes (presence of granules). These cells ultimately give rise to three kinds of leukocytes: the Basophil, Eosinophil and the Neutrophil. All of which are reffered to as granulocytes because of their presence of granules.

    *Stem cells could also arise to Lymphoblast which directly develops into a Lymphocyte

    *Monoblasts also develop from Hematopoeisis differentiation. the Monoblasts directly develop into a Monocyte.

    ***Remember that the Lymphocyte and Monocyte are examples of Agranulocyte (absence of granules in the cytoplasm)

    *Lastly, the Megakaryoblasts could also be formed which further develops into a Megakaryocyte and when it matures it breaks up into fragments which are known as the platelets or Thrombocytes.

    I hope i had enlightened you with my answer. I just kept the steps as simple as possible.

  • zahm
    Lv 4
    4 years ago

    Where Is Blood Made

  • eli
    Lv 7
    10 years ago

    In developing embryos, blood formation occurs in aggregates of blood cells in the yolk sac, called blood islands. As development progresses, blood formation occurs in the spleen, liver and lymph nodes. When bone marrow develops, it eventually assumes the task of forming most of the blood cells for the entire organism. However, maturation, activation, and some proliferation of lymphoid cells occurs in secondary lymphoid organs (spleen, thymus, and lymph nodes). In children, haematopoiesis occurs in the marrow of the long bones such as the femur and tibia. In adults, it occurs mainly in the pelvis, cranium, vertebrae, and sternum.

    All blood cells are divided into three lineages.

    Erythroid cells are the oxygen carrying red blood cells. Both reticulocytes and erythrocytes are functional and are released into the blood. In fact, a reticulocyte count estimates the rate of erythropoiesis.

    Lymphocytes are the cornerstone of the adaptive immune system. They are derived from common lymphoid progenitors. The lymphoid lineage is primarily composed of T-cells and B-cells (types of white blood cells). This is lymphopoiesis.

    Myelocytes, which include granulocytes, megakaryocytes and macrophages and are derived from common myeloid progenitors, are involved in such diverse roles as innate immunity, adaptive immunity, and blood clotting. This is myelopoiesis.

    Granulopoiesis (or granulocytopoiesis) is haematopoiesis of granulocytes.

    Megakaryocytopoiesis is haematopoiesis of megakaryocytes.

    Source(s): go to "haematopoiesis" in youtube
  • Anonymous
    5 years ago

    blood cells are formed in bone marrow in the long bones of the body femur for example

  • 10 years ago

    dare I say it, type the exact question into google, and it will likely show up, if not, type the item into wiki, and again, probably however... to the best of my own knowledge, it is made with the rest of the blood, however, if I am wrong, please do email me

    Source(s): www.google.co.uk, www.wikipedia.org
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