"Welcome! As you read this (with your eyes) and understand it (with your brain), perhaps turning to the next page (with muscle actions of your fingers, hand, forearm, and arm), you are using your body to do so. Indeed, some of you may be using your fingers, hand, forearm, and arm to read through the eBook on your computer, tablet, or smartphone. The structure and function of the human body can be complex, and comprehending the material might not always seem easy. But what could be more fascinating than learning about your own body? To assist your learning, the sixteenth edition of Hole's Human Anatomy & Physiology continues the tradition of presenting material in a conversational, accessible style. Many of you are on a path toward a career in health care, athletics, science, or education. If you have not yet committed to a particular area of study, be sure to check out the Career Corner in every chapter for ideas and inspiration. They present interesting options for future careers. Balancing family, work, and academics is challenging, but try to look at this course not as a hurdle along your way but as a steppingstone"--