Core Concepts of the Human Body

I wonder why my tummy rumbles and other questions about your body. Is my body the same as everyone else? You're the only person exactly like you in the whole world. That makes you very special. But although you're different from everyone else, your body is made of the same things as theirs. And it has exactly the same parts doing all the different jobs that keep you alive. Every once body has all the important parts shown below. These are some of the parts of the body that can be different. Here can be dark, fear or red, curly, wave or straight. Eyes can be different shades of blue, brown, gray or green. Noses are different shapes. Some people have freckles. Muscles can be big or small. Skin comes in lots of different colors. Some people are tall, some are small, some people are fat, some are thin. Can you see the wavy lines in the skin on your fingertips? They're your fingerprints. No one else in the whole world has the same fingerprints as you. What is inside my head? The most exciting and important part of your body is hidden inside your head beneath your hair, your skin and your hard-scale bone. It is your brain. Your brain is the part of you that thinks and remembers. It also makes sure the rest of your body is doing what it should. Your brain has two sides. The right side of your brain looks after the left side of your body, while the left side looks after the right side of your body. People's brains come in different sizes, but bigger brains don't make people more clever. Any more than having big feet makes them better runners. Nerves tell your body what is happening to it, like weather water fused too hot or too cold. Messages travel very fast along your nerves, the quickest to go as fast as 400 kilometers an hour. Your nerves start to your brain, then travel in a thick bundle. Then travel in a thick bundle down your back, inside your backbone. From there, they branch out to every part of your body. What makes me feel things? Every minute of the day, yo