Fig.4 Photomicrograph of a lymph node. This photo-
micrograph shows the cortex, deep cortex, and medulla. The
capsule is composed of dense connective tissue from which
trabeculae (T) penetrate into the organ. The lymphatic nodules
(LN) in the black dash line circles are the characteristic of the
outer cortex. The deep cortex is nodule free. It consists of
densely packed lymphocytes. In contrast to these areas, the
medulla is a less dense area.