WebYour heart is a muscle. It works hard, pumping blood every day. Help your heart get stronger by doing aerobic (say: air-OH-bik) exercise. Aerobic means "with air." When you do aerobic exercise, you breathe faster so you take in more air. Your heart beats harder too. This gives your heart a workout. WebWhen you breathe, your lungs take in oxygen. The heart pumps blood to the lungs to pick up oxygen, and then it pumps blood through the body to deliver that oxygen. The animations below show how a normal heart pumps …

Your Heart & Circulatory System (for Kids) - Nemours …

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How the Normal Heart Works Children

WebHeart rate. Your heart rate is the number of times your heart beats per minute. Normal heart rate varies from person to person, but a normal adult resting heart rate is usually about 60 to 100 beats per minute. During rest, your heartbeat will slow down. With exercise, it will beat faster. Knowing your heart rate can help you spot health problems. WebWhat you do: 1. Fill the jar half full of water. 2. Cut the neck of the balloon off at the part where it starts to widen into a balloon. Set the neck part aside. 3. Stretch the balloon over the opening of the jar, pulling it down as tightly as you can. The flatter you can get the surface of the balloon, the better. Before each beat, your heart fills with blood. Then it contracts to pump the blood along. When the heart contracts, it squeezes — try squeezing your hand into a fist. That's sort of like what your heart does so it can pump the blood. Your heart does this all day and all night, all the time. The heart is one hard worker! See more The heart is made up of four different blood-filled areas, and each of these areas is called a chamber. There are two chambers on each side of the heart. One chamber is on the top and one chamber is on the bottom. 1. The … See more The atria are the chambers that fill with the blood returning to the heart from the body and lungs. If you're talking only about one, call it an atrium. See more Your blood relies on four special valves inside the heart. A valve lets something in and keeps it there by closing — think of walking through a door. The door shuts behind you and keeps you from going backward. 1. Two of … See more Running down the middle of the heart is a thick wall of muscle called the septum(say: SEP-tum). The septum's job is to separate the left … See more scotiabankdr