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Question Video: Recalling the Maturation Site of T Lymphocytes Biology

Where do precursor T lymphocytes go to complete their maturation?


Video Transcript

Where do precursor T lymphocytes go to complete their maturation?

The immune system uses specialized cells to fight off infections. These cells are generally named white blood cells. There are many different types of white blood cells, and they each play a specific role in the immune system. Let’s discuss T lymphocytes, a type of white blood cell, in greater detail.

T lymphocytes, also called T cells, come in three varieties and carry out three functions in the immune system. Helper T lymphocytes, or helper T cells, activate other T cells and stimulate B cells to produce antibodies against a certain pathogen. Cytotoxic T lymphocytes, or cytotoxic T cells, destroy infected or diseased cells. Suppressor T lymphocytes, also known as suppressor T cells, suppress the action of the immune system, stopping it from attacking the body.

All white blood cells are made in the bone marrow, where there are stem cells that can differentiate into one of two types of cell: a myeloid progenitor cell or a lymphoid progenitor cell. Lymphocytes develop from lymphoid progenitor cells. To complete their maturation, some lymphoid progenitor cells travel to the thymus. This is an organ found near the trachea between the lungs. The cells that mature and differentiate here are thymus cell lymphocytes, or T cells. The mature T lymphocytes will then enter the bloodstream to play their role in our immune response.

Now we know precursor T lymphocytes complete their maturation in the thymus.

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