This course reviews anatomical and physiological systems, including the skeletal, muscular, nervous, endocrine, circulatory, lymphatic, digestive, respiratory, urinary, and reproductive systems. There is the option to color in specific bones, organs, and physiologic systems; instructions for doing so are found before the table of contents. While not required for the completion of continuing education, the radiographer is encouraged to color along with the book to enhance his or her understanding of the location and characteristics of bones, organs, and systems.