Children's LiteratureTeens from various parts of the country provided the questions for this substantial book's answers. It has an inviting style, with clear writing and lots of comparisons to common things. Well-organized, scientific information is included throughout, for example, "your heart and blood vessels are mostly protein. Protein molecules are chains of smaller molecules called amino acids. ...amino acids make up human proteins. Atoms...combine to form amino acids." In answering "How does my heart work?" the heart is compared to a piston pump, both in a diagram and text. Each of the five chapters about the heart, blood and things that can go wrong is following by a feature article printed on pink pages. One gives a humorous history of Valentine's Day, along with the actions of specific chemicals (hormones and neurotransmitters) that produce the feeling of love. Another presents a day in the life of a perfusionist. Diagrams of the body and its parts are well-labeled and easy-to-follow, albeit sometimes disproportionate. The backmatter is extensivea twenty question test with answers; detailed tables of endocrine glands, cells of the immune system, and vitamins and minerals; chapter notes and citations; a generous glossary; lists of resource books, articles, Internet sites and organizations; and an index. Using the same format, Brynie has written books about the brain, immune system and the skin, for which she has received awards. An excellent library addition and classroom resource. 2001, Twenty-First Century, $25.90. Ages 12 up. Reviewer: Elaine Wick
School Library JournalGr 6-10-Brynie asked hundreds of students for their questions about blood and circulation, and has answered 101 of them in a straightforward, well-organized style. She explains the operation of the circulatory system, from how the heart pumps to where a single red blood cell can travel, and addresses such topics as palpitations, heart attacks, the role of diet and exercise in heart health, and various components in blood (platelets, albumin, etc.). The writing is brisk but informative. The diagrams are clear and easy to understand, and the black-and-white photos, while few, are well chosen-especially that of a plaque deposit taken from a clogged artery. The volume also includes three supplementary tables that cover the endocrine glands, the immune system, and the role of vitamins and minerals in cardiovascular health. A solid overview, written in an approachable style.-Christine A. Moesch, Buffalo & Erie County Public Library, NY Copyright 2001 Cahners Business Information.
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