Heart - James, Mary
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Did you know that most animals have a heart? Its job is to pump blood through blood vessels to deliver oxygen, nutrients, and metabolic wastes to the various parts of the body. Among other things, the heart helps the body stay healthy and provides energy for the body. Read on to learn more about the heart! Also read this heart-related ! Here are some facts that will amaze you! Weigh your options: 99% of the heart is made up of muscle cells. These cells beat to pump blood throughout the body. The heart also contains pacemaker cells that produce electrical impulses to regulate its rate of…mehr

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Did you know that most animals have a heart? Its job is to pump blood through blood vessels to deliver oxygen, nutrients, and metabolic wastes to the various parts of the body. Among other things, the heart helps the body stay healthy and provides energy for the body. Read on to learn more about the heart! Also read this heart-related ! Here are some facts that will amaze you! Weigh your options: 99% of the heart is made up of muscle cells. These cells beat to pump blood throughout the body. The heart also contains pacemaker cells that produce electrical impulses to regulate its rate of beating. Although similar to nerve cells, heart muscle cells have their own specializations. Their autorhythmicity means that they move at a certain rate and follow a particular path. Here are a few interesting facts about the heart. We can learn more about the heart's function and how it affects the body. The heart has four chambers. The two upper chambers are called atria, while the two lower chambers are known as ventricles. Each chamber is separated by a muscular wall, called a septum. The left chamber pumps blood most powerfully, which is why you feel the heartbeat more on the left side of the chest. The right side contains the opposite chambers. When one side is pumping, the other chambers are relaxed.