Image:SEM blood cells.jpg
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[edit] Summary
| Description |
This is a scanning electron microscope image from normal circulating human blood. One can see red blood cells, several white blood cells including lymphocytes, a monocyte, a neutrophil, and many small disc-shaped platelets. Red cells are nonnucleated, and contain hemoglobin, containing iron an important protein which allows the cell to carry oxygen to other parts of the body. They also carry away carbon dioxide from the lungs. The infection-fighting white blood cells, are classified in 2 main groups: granular and agranular. Granulocytes are formed in bone marrow, agranulocytes are produced by lymph nodes and spleen. There are two types of agranulocytes: lymphocytes, fight disease by producing antibodies and thus destroying foreign material, and monocytes. Platelets are tiny cells formed in bone marrow and are necessary for blood clotting. Type: Black & White Print |
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| Source |
Image and description: National Cancer Institute |
| Date |
Date Created: February 1982 |
| Author |
Bruce Wetzel (photographer). Harry Schaefer (photographer) |
| Permission |
[1] "All images are in the public domain and may be used, linked, or reproduced without permission. If an image is used, credit should be given to the listed source and/or author." |
[edit] Licensing
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This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright.
Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. العربية | Česky | Deutsch | Español | 한국어 | Italiano | 日本語 | Magyar | Français | Português | 简体中文 | 正體中文 | +/- < |
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