తెల్ల రక్తకణాలు
(తెల్ల కణాలు నుండి దారిమార్పు చెందింది)
తెల్ల కణాలు లేదా తెల్ల రక్తకణాలు (White Cells or White Blood Cells) రక్తం లోని ఒక విధమైన కణాలు.
తెల్లకణాల పట్టిక[మార్చు]
| Type | Microscopic Appearance | Diagram | Approx. % in adults[1] |
Diameter (μm)[1] | Main targets[2] | Nucleus[2] | Granules[2] | Lifetime[1] |
|---|---|---|---|---|---|---|---|---|
| Neutrophil |  |
 |
54-62%[3] | 10-12 | multilobed | fine, faintly pink | 6 hours-few days (days in spleen and other tissue) | |
| Eosinophil |  |
1-6% | 10-12 | bi-lobed | full of pink-orange (when stained) | 8-12 days (circulate for 4-5 hours) | ||
| Basophil |  |
 |
<1% | 12-15 |
|
bi- or tri-lobed | large blue | ? |
| Lymphocyte |  |
 |
25-33% | 7-8 | 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 |
మూలాలు[మార్చు]
- ↑ 1.0 1.1 1.2 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.
- ↑ 2.0 2.1 2.2 Alberts, Bruce (2005). "Leukocyte functions and percentage breakdown". Molecular Biology of the Cell. NCBI Bookshelf. Retrieved 2007-04-14.
- ↑ ఉల్లేఖన లోపం: చెల్లని
<ref>ట్యాగు;wisc-online.comఅనే పేరుగల ref లలో పాఠ్యమేమీ ఇవ్వలేదు - ↑ 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