50.0 MB (7.0 MB compressed)
5164 x 3385 pixels
43.7 x 28.7 cm ⏐ 17.2 x 11.3 in (300dpi)
PR. J. BERNARD / CNRI / SCIENCE PHOTO LIBRARY PR. J. BERNARD / CNRI / SCIENCE PHOTO LIBRARY
Lymph tissue. Light micrograph of a section through lymphatic tissue. An arteriole, a very small artery, is seen at right (round) filled with red blood cells. Within the tissue are B and T lymphocytes (purple). These are cells of the body's immune system. They recognise foreign objects in the lymph fluid and eradicate them.
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