All 8 systems of the body are listed as chapters. Students use a normal physiology parent-approved textbook as a reference, as well as the scriptures to discover the beauty of the spiritual side of physiology. (The subject of the reproductive system is for parents to discuss privately with their children.)
At the conclusion of the book, students research further into the scriptures to discover WHY God created their body. Of all the science books offered, this particular guidebook will be the best resource for discovering God's greatest creation -- the human body.