The lively exchanges among the researchers also helped this Zurich Heart sub-project. Doctoral students of Product Development Group Zurich, who are working on new technologies for blood pumps, have developed a testing environment with which they can simulate the human cardiovascular system. The researchers of the silicone heart made use of this testing environment for their development process which also included the use of a fluid with comparable viscosity as human blood.
Evolution of the Human Heart
Predictions for What if we get things right? Read the series. Most Popular. These photos show some of the world's smallest things massively magnified Sean Fleming 06 Nov More on the agenda.
How does the heart work? - science made simple
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Heart - your heart heart; blood; ventricle; atrium; oxygen; pump ; Contents What it looks like What it does Love your heart Heart—y sayings Dr Kim says What is a heart murmur? What it looks like Your heart is about the same size as a pear.
The heart is two pumps joined together. What it does The walls of the heart are made of really strong muscles that squeeze and relax to pump blood around the body. Blood is pushed from the atriums into the ventricles on each side of the heart. Your blood is pumped all around your body and gets back to your heart in about a minute.
Love your heart If your heart is healthy it will be able to work for a very long time. It is up to you to keep your heart healthy. Your heart will like it if you: Exercise every day You need to exercise your heart by making it work harder for at least 30 minutes a day.
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Eat a healthy diet. Too much fatty food will block up the arteries with fat and your heart will have to work harder and harder just to do its regular job of pumping blood round your body. See our topics in the 'Your food' category to learn about the foods your body needs and what your heart likes. Drink lots of water every day rather than fizzy drinks. Spend less time sitting still. Take a break while watching TV, playing computer games or doing your homework.
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Get up from your seat and move around. Make good choices as you grow older. Your heart will love you for it! Heart-y sayings Have you thought about all the sayings we have about the heart? Here's a list that some kids came up with. Can you think of any more? Entering the heart through the pulmonary veins, oxygenated blood comes into the left atrium. Continuing down through the mitral valve , it passes to the left ventricle. From the diagram above, you can see that the muscle of the left ventricle pictured in pink is thicker than that of the right ventricle. This is because of the additional force needed to pump blood around the whole body rather than just the lungs.
The aorta is a very important blood vessel, accommodating high pressure blood from the heart. The aorta has elastic properties, allowing it to expand as higher pressure blood passes through, then contract passively.
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From the aorta, the blood travels through smaller arteries and capillaries to reach all parts of our body. Returning through veins, the now deoxygenated blood returns to the vena cava, and the journey begins again.
Trying to learn parts of the heart from diagrams is a far cry away from reality.