What Are White Blood Cells?
Reviewed: Dr. Gromatzky
8. Formation
White blood cells are made in a process known as hematopoiesis. All of our blood cells originate from another type of cell, known as hematopoietic stem cells, and these will eventually evolve into another type of cell as required. This process occurs in our bone marrow.
White blood cells have a short life span, so they are always being produced by the bone marrow. Once they have been manufactured, they will travel in the blood and/or in the lymphatic system. Some will be housed in the lymph nodes, which are small glands responsible for helping to remove pathogens from the body.
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