Where are b cells produced and mature

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B-cells, also known as B lymphocytes, are one of several types of white blood cells in the body that are produced in the bone marrow through a process called hematopoiesis, which is the formation and development of both red and white blood cells. B-cells roam the body as part of our immune system, protecting us from foreign antigens that pose a threat to our health. B-cells get their name not from research done into human anatomy but from research done into the anatomy of birds. But 'birds' isn't the origin of the B; instead, B-cells were named after the site in birds where this specific type of blood cell matures, called the b ursa of Fabricius.
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B-Cells in Your Immune System

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T cell - Wikipedia

B cell , One of the two types of lymphocytes the others being T cells. All lymphocytes begin their development in the bone marrow. B cells are involved in so-called humoral immunity ; on encountering a foreign substance antigen , the B lymphocyte differentiates into a plasma cell , which secretes immunoglobulin see antibody. B cell Article Media Additional Info.
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B cell activation and the germinal centre response

Humoral immunity refers to mechanisms of the adaptive immune defenses that are mediated by antibodies secreted by B lymphocytes, or B cells. This section will focus on B cells and discuss their production and maturation, receptors, and mechanisms of activation. Unlike T cells, however, lymphoblasts destined to become B cells do not leave the bone marrow and travel to the thymus for maturation. Rather, eventual B cells continue to mature in the bone marrow. The first step of B cell maturation is an assessment of the functionality of their antigen-binding receptors.
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We have a new website! This site shall remain for archival purposes. B cells are a type of white blood cell. They are similar to swallowing cells like macrophages but they are specific, meaning they can only attack one kind of intruder. B cells create antibodies during an immune response.
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