Your body (whats your body made of and how it works?)

[...]... reflex It helps to protect you from danger The right side of your brain controls the movements of your left hand To do this as fast as possible, the impulses bypass your brain and go from your spine to your muscles 19 What makes you move? Your skull protects your brain Your ribs protect your heart and lungs Your muscles You are able to move the different parts of your body because of the way your muscles,...Inside your head Parts of the brain Your brain controls your body and makes sure that all the different parts of you work together It makes sense of what happens to you and enables you to think, learn and feel Rather like a computer, your brain receives information, processes it and decides what action to take Brain and nerves Your brain is connected to all parts of your body by nerves Messages go to and. .. lots of sweat glands under your arms Tooth decay leads to toothache Amazing facts about your body Exercise Exercise is good for you in lots of ways 1 It makes you strong by making your muscles bigger and stronger Without exercise, muscles waste away and turn to fat 2 It strengthens your bones and keeps your joints supple, so they do not stiffen up and give you aches and pains 3 It makes your heart and. .. marrow Many of your muscles are arranged in layers over your skeleton They are attached to your bones by strong cords called tendons You can see and feel your biggest tendon, just above your heel You can also see tendons on the inside of your wrist when you clench your fist and at the inside of your elbow when you bend your arm How muscles work Joints When you want to move part of your body, your brain... brain and nerves all work together Your skeleton Besides helping you to move, your skeleton gives your body shape and stops it from collapsing It also protects parts of your body What's in a bone? The outside of your bones is very hard but the inside is softer and spongy It is arranged in a meshwork, which makes it light but strong Some bones contain a substance called marrow Blood cells are made in... additives, such as food dyes and preservatives, which are put into many foods Keeping clean Fruit and vegetables contain vitamins and minerals You need these to keep your body working efficiently Milk, cheese and yogurt contain calcium, which makes your bones and teeth strong They also contain protein Fibre is a carbohydrate that your body cannot digest It is good for your digestive system, though It. .. miles) of nerves in their body, enough to stretch over 185 times around an Olympic running track How many bones? You have over 200 bones Around half of them are in your hands and feet Your thigh bone is both the longest and strongest bone in your body 30 How much muscle? You have over 600 muscles The largest are in your bottom but the strongest are the ones you use for biting at each side of your mouth... It makes sure your heart keeps beating and that you breathe and digest your food Two halves of the brain 4 Message goes from brain to hand: "Scratch itch." You can't normally feel the impulses as they travel along your nerves However, your funny bone is very close to a nerve and the shooting pain you get when you bang it is an electrical impulse If you prick your finger, you pull your hand away immediately... balance of all the different types Eating the right amount is important too: neither too much nor too little Protein foods make you grow and help repair your body Meat, fish, eggs and nuts contain protein Carbohydrates give you energy Bread, cereals, rice, pasta and potatoes are good energy foods Foods to cut down on Sugar gives you energy but has no other benefits; it rots your teeth and too much of it. .. a way of making sense of what has happened to you The main pathway for your nerves is inside your backbone Rapid reflexes Each half of the brain controls the opposite side of the body This is because the nerves to the two sides of your body cross each other as they leave your brain 2 Message goes along nerve to brain from nerve ending (receptor) in arm Your brain works even when you are asleep It makes . babies made? 24 What makes you ill? 26 Looking after your body 29 Amazing facts about your body 32 Index What is your body made of? Your body is made of more than 50 million million living units. spine to your muscles. 19 What makes you move? Your skull protects your brain. Your ribs protect your heart and lungs. You are able to move the different parts of your body because of the way your. through them into your blood. Your blood carries it to all your body cells and brings back carbon dioxide. Why do you breathe? Before your body can use the energy which is in your food, the food