Page 344 - Veterinary Immunology, 10th Edition

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FIG. 12.9 A section of bovine lymph node. Note the presence of
several germinal centers in the cortex. Original magnification ×12.
(From a specimen provided by Dr. W.E. Haensly.)

FIG. 12.10 A germinal center in the cortex of a cat's lymph node.
Note the obvious dark and light zones. B cells undergo mutation in
the dark zone, while memory cells develop in the central light zone.
Original magnification ×120. (From a specimen provided by Dr. W.E.
Haensly.)

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