Page 97 - Atlas of Histology with Functional Correlations

FIGURE 2.12 ■ Golgi apparatus. ×23,000.

FIGURE 2.13 | Ultrastructure of Lysosomes and

Residual Bodies in Cytoplasm of Tissue

Macrophage

A medium-magnification electron micrograph illustrates numerous dense-
staining lysosomes (3) in the cytoplasm of a tissue macrophage. The lysosomes
(3) show great variation in size, appearance, density, and the contents. Also
visible in the cell cytoplasm are what appear to be the residual bodies (1, 4),

consisting of lipid-like material and dense undigested matter enclosed in a
membrane. Distinguishing between material being digested in the lysosomes and
the residual bodies is often quite difficult. Located also in the cytoplasm are
numerous mitochondria (2), sectioned in different planes. Note also the

difference in size between the mitochondria and the variably sized lysosomes. In
the left hand corner is a section of a cytoplasm from an adjacent cell.

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