Thekey differencebetween T lymphocytes and B lymphocytes is that theT lymphocytes originate in bone marrows and mature in the thymus while B lymphocytes originate and mature in bone marrows.
The main two types of cells in blood are red blood cells (RBC) and white blood cells (WBC). RBC carries and transports oxygen while WBC helps in defense mechanisms. There are two main types of white blood cells as粒细胞和新生细胞. Granulocytes contain granules in the cytoplasm while agranulocytes do not have granules in the cytoplasm. Agranulocytes have two main types: lymphocytes andmonocytes. Lymphocytes are similar in appearance, but they have different functions. Based on their functions, lymphocytes are divided into T lymphocytes and B lymphocytes. Both are important to fight against infections. The main aim of this article is to discuss the difference between T lymphocytes and B lymphocytes.
What are T Lymphocytes?
T lymphocytes are a type of lymphocytes, and also a type of white blood cells involved in cell-mediated immunity. 80% of the lymphocytes circulating in the blood are T lymphocytes. They are agranulocytes. T lymphocytes originate in the bone marrow. Later, they migrate to thymus for maturation. Hence, the name “T cells” is given to these cells.
T淋巴细胞有三种类型：助手T细胞，细胞毒性T细胞, and suppressor T cells. Helper T cells indirectly induce the immune system by secreting cytokines. Cytotoxic T lymphocytes directly kill the infected cells byphagocytosiswhile suppressor T cells suppress the inappropriate immune responses in the body.
- Both T lymphocytes and B lymphocytes are white blood cells.
- And, they are involved in adaptive immunity of our body.
- Moreover, both types circulate through the blood.
Moreover, there are three types of T lymphocytes as helper t cells, cytotoxic T cells, and suppressor T cells while there are two types of B lymphocytes as plasma cells and memory cells. Besides, T lymphocytes move to the site of infection while B lymphocytes do not move. Therefore, we can consider this also as a difference between T lymphocytes and B lymphocytes. Furthermore, 80% of the circulating lymphocytes in the blood are T lymphocytes while only 20% are B lymphocytes. Hence, this is also a difference between T lymphocytes and B lymphocytes.
The below infographic presents more information on the difference between T lymphocytes and B lymphocytes comparatively.
概括– T Lymphocytes vs B Lymphocytes
淋巴细胞are a type of white blood cells important in adaptive immunity in our body. T lymphocytes are involved in cell-mediated immunity while B lymphocytes are involved in humoral immunity. Bone marrows produce both T lymphocytes and B lymphocytes. However, T lymphocytes mature in thymus while B lymphocytes mature in bone marrows. There are three types of T lymphocytes as helper T cells, suppressor T cells, and cytotoxic T cells. Helper T cells activate cytotoxic T cells and B cells while cytotoxic T cells kill pathogens by phagocytosis. On the other hand, B lymphocytes produce and secrete antibodies in order to activate the immune system to destroy the antigens. B lymphocytes also have two main types: plasma cells and memory cells. Thus, this is a summary of the difference between T lymphocytes and B lymphocytes.
1.“Blausen 0625 Lymphocyte T cell (crop)” By Blausen.com staff (2014). “Medical gallery of Blausen Medical 2014”. WikiJournal of Medicine 1 (2). DOI:10.15347/wjm/2014.010. ISSN 2002-4436(CC BY 3.0)via下议院维基梅迪亚
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