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Published byJoy Small Modified over 9 years ago
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Body Systems
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Journey Through Your Body Circulatory- distributes blood through your body Watch It!Watch It! – Heart, Veins and Arteries, Lungs Respiratory- oxygen in & into your blood; carbon dioxide out Watch this!Watch this! – Lungs, alveoli (air sacs/pockets), trachea (windpipe), diaphragm Skeletal- movement, protection, structure Check it Out!Check it Out! – Bones & joints Muscular- movement Look at It!Look at It! – Muscles Nervous- signals to brain, tell body what to do; senses Wow!Wow! – Skin, eyes, ears, nose, mouth, brain, spinal cord Digestive- breaks down food and releases energy Ohhh AhhhOhhh Ahhh – Mouth, esophagus, stomach, liver, intestines Excretory- gets rid of waste Look at it!Look at it! – Bladder, kidneys
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Digestive breaks down food releases energy from that food Starts in the mouth – Teeth grind the food into smaller bits – Saliva starts to break down the food – Goes through esophagus to the stomach – Stomach gets nutrients out of food- uses stomach acid – The liver adds some chemicals like bile to help digest the food – Goes into the small intestine to get broken down more – Goes into the large intestine -- broken down more & have water/waste removed – After that, the excretory system takes over to get rid of it! – Ohhh AhhhOhhh Ahhh
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Nervous Your senses take something in: see, hear, feel, taste, smell Your nerve cells (nerves) carry the message – Up your spinal cord – into your brain Your brain figures out what it means and tells your body what to do Your body listens to the brain and acts Wow!
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Circulatory Distributes blood through your body Heart- pumps blood to lungs for oxygen and then to body Veins (TO) and Arteries (AWAY) Lungs- puts oxygen in blood and sends to heart Red blood cells: absorb oxygen and deliver it to body White blood cells: help fight infection (immune system) Platelets: helps blood clot Watch It!
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Respiratory You inhale (breathe in) oxygen- lungs + diaphragm It goes to your lungs Tiny air pockets in the lungs called alveoli Blood that needs oxygen comes from the heart – BLUE Lungs put oxygen in blood and send it back – RED You exhale (breathe out) the carbon dioxide lungs take from the BLUE blood Watch this!
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Excretory Waste comes from digestion Kidneys filter your waste to make sure there’s nothing else in there your body can use-- only the bad stuff goes Bladder holds it until you can get rid of it Look at it!
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Muscular & Skeletal Skeletal- movement, protection, structure Check it Out! Check it Out! – Bones & joints Muscular- movement Look at It! Look at It! – Muscles How are they alike? How are they different?
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Immune Fights infections Attack/destroy bacteria and viruses that enter your body – White blood cells
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