DON W. FAWCETT / SCIENCE PHOTO LIBRARY DON W. FAWCETT / SCIENCE PHOTO LIBRARY
Color enhanced illustration showing the ultrastructure of a typical steroid secreting cell. HISTOLOGY, 11th Edition figure 3-23 Steroid, any of a large group of fat-soluble organic compounds, as the sterols, bile acids, and sex hormones, most of which have specific physiological action.
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