తెల్ల రక్తకణాలు

తెల్ల కణాలు లేదా తెల్ల రక్తకణాలు (White Cells or White Blood Cells) రక్తం లోని ఒక విధమైన కణాలు.

Disambiguation

Type	Approx. % in adults[1]	Diameter (μm)[1]	Main targets[2]	Nucleus[2]	Granules[2]	Lifetime[1]
Neutrophil	54-62%[3]	10-12	bacteria fungi	multilobed	fine, faintly pink	6 hours-few days (days in spleen and other tissue)
Eosinophil	1-6%	10-12	parasites in allergic reactions	bi-lobed	full of pink-orange (when stained)	8-12 days (circulate for 4-5 hours)
Basophil	<1%	12-15	in allergic reactions	bi- or tri-lobed	large blue	?
Lymphocyte	25-33%	7-8	B cells: various pathogens T cells: Natural killer cells: virus-infected and tumor cells.	deeply staining, eccentric	NK-cells and Cytotoxic (CD8+) T-cells [4]	weeks to years
Monocyte	2-8%	14-17	Monocytes migrate from the bloodstream to other tissues and differentiate into tissue resident macrophages or dendritic cells.	kidney shaped	none	hours-days
Macrophage		21 (human)[5] 13 (rat)[6]	Phagocytosis (engulfment and digestion) of cellular debris and pathogens, and stimulation of lymphocytes and other immune cells that respond to the pathogen.			activated=days immature=months-years
Dendritic cells			Main function is as an antigen-presenting cell (APC) that activates T lymphocytes.			similar to macrophages

Daniels, Victor G.; Wheater, Paul R.; Burkitt, H. George (1979). Functional histology: a text and colour atlas. Edinburgh: Churchill Livingstone. ISBN 0-443-01657-7.CS1 maint: Multiple names: authors list (link)
Alberts, Bruce (2005). "Leukocyte functions and percentage breakdown". Molecular Biology of the Cell. NCBI Bookshelf. Retrieved 2007-04-14.
Semester 4 medical lectures at Uppsala University 2008 by Leif Jansson
Environemental Health Perspectives 150(5), Sept. 1997
Environmental Health Perspectives 150(5), Sept. 1997

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