The electrical signal then travels down through the conduction pathways to the heart's ventricles. This causes them to contract and pump out blood.
However, when you get right down to it, the heart is just a pump. A complex and important one, yes, but still just a pump. As with all other pumps it can become clogged, break down and need repair. This is why it is critical that we know how the heart works. With a little ...
How the heart works.Presents information on the workings of the human heart. A diagram of the heart showing its parts and the path of blood flowing through it.EBSCO_AspUsa Today Magazine
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Learn How the Heart Works Yourheartis an amazing organ. It continuously pumps oxygen and nutrient-richbloodthroughout your body to sustain life. This fist-sized powerhouse beats (expands and contracts) 100,000 times per day, pumping five or six quarts ofbloodeach minute, or about 2,000 gallo...
How It Works – The heart is considered a double pump because the right half sends 'used' blood to your lungs. – Science
心脏是如何工作的How Your Heart Works是身体是如何工作的(1-6)的第4集视频,该合集共计6集,视频收藏或关注UP主,及时了解更多相关视频内容。
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According to Helen Fisher, a well-known love researcher and an anthropologist at Rutgers University, together these two chemicals produce elation, intense energy, sleeplessness, craving, loss of appetite and focused attention. She also says, "The human body releases the cocktail of love rapture only...
Your heart races. Your muscles tighten. A split second later, you know it's the wind. No one is trying to get into your home. For a split second, you were so afraid that you reacted as if your life were in danger, your body initiating the fight-or-flight response that is critical...