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Description:This photomicrograph is the first in a series of three images depicting the cellular content of a peritoneal exudate extracted from the abdominal cavity of a guinea pig. The prevalent cell type is represented by numerous white blood cells (WBCs) of the polymorphonuclear type (PMNs). Of the three images, this one was captured under the lowest, though unknown, magnification. See PHIL 15444, and 15445, for the other two images in this series, each viewed under successively-greater magnifications.
White blood cells are not oxygen-carriers like red blood cells (RBCs), but act as members of the body’s defense mechanism, fighting the constant onslaught of pathogenic invaders such as bacteria, and foreign debris.

When compared to their cousins the erythrocytes, or RBCs, the leukocytes are larger in size, and much fewer in numbers, i.e., 8000/mm3. Leukocytes are categorized into two main groups, granular leukocytes, i.e., neutrophils, eosinophils and basophils, and the nongranular leukocytes, i.e., lymphocytes and monocytes.

High Resolution: Click here for hi-resolution image (18.35 MB)
Content Providers(s):CDC/ Al Hanson
Creation Date:1975
Photo Credit:
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.