How the Brain Grows (Brain Works)

Book Preface

The human body is a series of interrelated systems: circulatory and respiratory systems, skeletal and muscular systems, digestive and excretory systems, endocrine and reproductive systems, lymphatic and immune systems, and the nervous system. From its earliest development in the fetus, a complex mass of tissue housed in your skull controls and coordinates these systems, which play out all of your mental and physical actions. This complex mass of tissue is your brain. Your brain is a major part of the nervous system, and without it, none of the other systems could work.