20.8 MB (1.3 MB compressed)
2996 x 2426 pixels
25.4 x 20.6 cm ⏐ 10.0 x 8.1 in (300dpi)
NIBSC / SCIENCE PHOTO LIBRARY NIBSC / SCIENCE PHOTO LIBRARY
Scanning electron micrograph of a field of normal, peripheral, blood leucocytes (white blood cells), two spreading macrophages and scattered erythrocytes (red blood cells). There are three major divisions of leucocytes: granulocytes, lymphocytes and monocytes. Macrophages belong in the divison of monocytes. Together, they are involved in protecting the body against the invasion of foreign substances and in antibody production. Magnification: x5,000 at 8x10 inch size.
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