News tagged with white blood cells

Related topics: cells · immune system · immune cells · t cells · immune response

Diagnosis before disease breaks out

Many patients with serious diseases are not helped by their medications because treatment is started too late. An international research team led from Linköping University is launching a unique strategy for discovering a ...

Nov 11, 2015
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Mucus—the first line of defence

By licking a wound it heals faster – this is not simply popular belief, but scientifically proven. Our saliva consists of water and mucus, among other things, and the mucus plays an important role. It stimulates white blood ...

Nov 06, 2015
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White blood cell

White blood cells (WBCs), or leukocytes (also spelled "leucocytes"), are cells of the immune system defending the body against both infectious disease and foreign materials. Five different and diverse types of leukocytes exist, but they are all produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell. Leukocytes are found throughout the body, including the blood and lymphatic system.

The number of leukocytes in the blood is often an indicator of disease. There are normally between 4×109 and 1.1×1010 white blood cells in a litre of blood, making up approximately 1% of blood in a healthy adult. An increase in the number of leukocytes over the upper limits is called leukocytosis, and in leukopenia, this number is much lower than the lower limit. The physical properties of leukocytes, such as volume, conductivity, and granularity, may change due to activation, the presence of immature cells, or the presence of malignant leukocytes in leukemia.

This text uses material from Wikipedia, licensed under CC BY-SA

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