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DNA: Your Body’s Blueprints
With over 3 billion cells, each with a specific job, your body is a wonder. Some of the cells help you see; others give you your sense of taste or touch. Still other cells allow your body to jump, run, or throw a ball. But how do the cells “know” which job to do? How do they “know” how to do their job? The answer is DNA, which is sort of like your
Femur: Longest, Largest and Hardest bone
As you all know, there are total 206 bones in human body. These bones are collectively known as human skeleton. Generally, these bones are classified in two major types, axial skeleton and appendicular skeleton. Axial skeleton has total 80 bones and...

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Structure of a Human Skeleton
Human skeleton works as a framework for the body by supporting tissues. It also protects internal organs of the human body. There are a total of 206 bones in the human body. Its main functions are to give proper shape to...
Structure and Functionality of Neurons
Neurons are nerve cells. These cells are specialized to transmit signals throughout the body. They are used to form the tissues of the nervous system. Neurons can do different things like processing information, internal...
Structure and functionality of the Human Brain
The Human brain is the most complex organ of the entire body. It is the command center of your nervous system. The Central Nervous system and the Peripheral Nervous System control every small task of your daily life,...
Sense of Smell
Sense of Smell Have you ever noticed how a certain smell can remind you of old memories? Maybe the smell of homemade cookies or perfume reminds you of your mom. Does the smell of stinky socks make you think of your big brother? Inside your nose is the olfactory epithelium, which is a fancy word for “smell device.” In the olfactory epithelium are more than 10 million scent receptors. These...
Nerves and the Nervous System – The Operating System of Human Beings
Nerves and the Nervous System – The Operating System of Human Beings Let’s say a bee lands on your hand. A message from the nerves in your hand races to your brain –“There’s a bee on my hand.” Your brain quickly processes the information and responds with the message, “Danger. Move your hand. The bee...
Human Brain
Human Brain Faster than the fastest computer, your amazing brain controls every move you make. Your brain tells your
Eyes – Structure and Functioning
Eyes – Structure and Functioning Inventors have made airplanes, telephones, computers and many other marvelous things. Few inventions, though, can compare to the wonder of your eyes. Your eyes allow you to see the green grass, your mom and your
Human Body Senses
Human Body Senses You live in a colorful, interesting world. How do you learn about the world? Through your senses. Through your sense of vision, you can see the world. You see your family. You see colors. You look at the grass, trees and animals. Through your sense of smell, you can smell yummy
Poop – Human Excretory System Basics
Poop – Human Excretory System Basics Every day your body takes in air, food and liquid. Your body uses most of these materials to grow...
Healthy Food for Kids
Healthy Food for Kids Imagine if your body was a fancy sports car. What kind of fuel would you put in it? Would you give it the best fuel you could buy or whatever was around? Your body actually is a little like a sports car. When you give your body
Digestive System – Its Parts and Functions
Digestive System – Its Parts and Functions What happens when you eat your favorite food? Maybe it’s a slice of pizza or chicken nuggets. You know it tastes yummy, but what happens next? When your stomach is empty, you feel hungry. If you smell good food, your brain...
Teeth – Not Just for a Healthy Smile
Teeth – Not Just for a Healthy Smile Your teeth do more than give you a sparkling smile. They grind up food so you can eat it. Imagine trying to eat an apple without chewing it up first. Those big, hard lumps of fruit would hurt going down. Yes, teeth are marvelous...
Blood – Oil for Your Body
Blood – Oil for Your Body The engine in your mom’s car has oil. The oil does lots of things. It keeps the engine clean and it keeps things running smoothly. Your blood is a little like engine oil, but even better. Blood carries oxygen and nutrients to all the cells in your body so they...
Human Body Sitemap
The Human Body: How Your Body Moves - Human Bones
Breathing System
Breathing System From the moment you are born, you breathe – in and out – all day and all night long. When you inhale, your lungs draw in oxygen, a gas in the air that we need to live. The oxygen is then sent through the blood to all parts of your
Muscles – The Human Body
Muscles – The Human Body If bones give your body support, muscles give it power. You have over 600 muscles in your body. Some of these muscles control big movements, like the muscles in your arms and legs. Other muscles control very tiny movements, like blinking. Most of your...
Bones and Skeleton – Your Bodies Frame
Bones and Skeleton – Your Bodies Frame Sure, a skeleton looks sort of creepy, but without it, you’d be little more than a pile of jelly. Most of your body parts are soft and squishy. Bones are hard and strong. They hold you up so you can move around. Your body has more than 200 bones. Put them...
Skin – Structure and Functions
Skin – Structure and Functions Your skin’s all over you. In fact, your skin is larger than any other part of your body. It’s a good thing too. Your skin keeps your insides in. It keeps germs and yucky things out. It protects your body and keeps it from drying out. Skin can also help keep you...
Growing Up – Embryo to Adult Human Being
Growing Up – Embryo to Adult Human Being While a baby is inside its mother’s body, it grows really, really fast. It begins as a tiny embryo – smaller than a grain of rice. After two months, the baby is about the size of your finger. During this time, babies develop a brain, eyes, ears,
Human Body – Its Function and System
Human Body – Its Function and System Your body is more amazing than any machine on earth. Your brain works like a complex computer, telling all the other systems in your body what to do. Your circulatory system includes your heart and blood. It delivers nutrients to your organs and keeps things clean. Your
 
 
 

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