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Chapter 1 - Intro to Structure & Function of the Body
Systems of the Human Body
Daniel D. Chiras holds a Ph. He is also an avid musician, organic gardener, river runner, and bicyclist. Human Body Systems: Structure, Function and Environment focuses primarily on the organ systems that comprise and control our bodies and is written for those who want to learn more about the body's physiological systems, how they operate, and what happens when things go wrong. Written by Dr. Daniel Chiras, author of the best-selling college textbook Human Biology: Health, Homeostasis, and the Environment, Fourth Edition, this book provides the very basics of human anatomy and physiology, offering selected information that should be most useful to the reader without a science background.
Learn about The Nobel Prizes that have been awarded since , as well as the criteria and nomination process that are used to select the winners. NASA Kids is an excellent site for "kids" of all ages and provides an abundance of information, images, and interesting things to do on astronomy and the space sciences. In this lesson, students learn about sources of high-energy radiation and calculate student exposure to ionizing radiation over the past year. To understand that there are different systems within the body and that they work independently and together to form a functioning human body. At this level, children can begin to view the body as a system, in which parts do things for other parts and for the organism as a whole. Through the use of an online interactive activity, children learn about the concept of separate components working together to build a body system. In addition, this lesson focuses on activities to help students learn that body systems work together to build the functioning human body.
Different organs can work together to perform a common function, like how the parts of your digestive system break down food. We refer to an integrated unit as an organ system.
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The digestive system is made up of organs that break down food into protein, vitamins, minerals, carbohydrates, and fats, which the body needs for energy, growth, and repair. After food is chewed and swallowed, it goes down the esophagus and enters the stomach, where it is further broken down by powerful stomach acids. From the stomach the food travels into the small intestine. This is where your food is broken down into nutrients that can enter the bloodstream through tiny hair-like projections. The excess food that the body doesn't need or can't digest is turned into waste and is eliminated from the body. The endocrine system is made up of a group of glands that produce the body's long-distance messengers, or hormones.