This introductory text to human anatomy and physiology is written in an informal style and covers all introductory topics. Unifying themes throughout the book include homeostatis, the interrelationship of systems and the complementarity of structure and function. Chapters on the cell, the nervous system and the immune system have been extensively revised to reflect recent information. New appendices on amino acid structures, chemical/functional groups, Farenheit/Celcius conversion and tables of normal blood and urine test values have also been added.