Page 343 - Veterinary Immunology, 10th Edition
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FIG. 12.8 The major structural features of a typical mammalian
lymph node.
The interior of lymph nodes is divided into three regions: a
peripheral cortex, a central medulla, and an ill-defined region in
between, called the paracortex (Fig. 12.9). B cells predominate in the
cortex, where they are arranged in aggregates called follicles. In
lymph nodes that have been stimulated by antigen, some of these
follicles form specialized structures called germinal centers (Fig.
12.10).
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