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| | photo results | Headphones may cause `heartache` | Starting in the right atrium, the blood flows through the tricuspid valve to the right ventricle. Here it is pumped out the pulmonary semilunar valve and travels through the pulmonary artery to the lungs. From there, blood flows back through the pulmonary vein to the left atrium. It then travels through the mitral valve to the left ventricle, from where it is pumped through the aortic semilunar valve to the aorta. The aorta forks, and the blood is divided between major arteries which supply the upper and lower body. The blood travels in the arteries to the smaller arterioles, then finally to the tiny capillaries which feed each cell. The (relatively) deoxygenated blood then travels to the venules, which coalesce into veins, then to the inferior and superior venae cavae and finally back to the right atrium where the process began.
The heart is effectively a syncytium, a meshwork of cardiac muscle cells interconnected by contiguous cytoplasmic bridges. This relates to electrical stimulation of one cell spreading to neighboring cells. | |
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tirtha9
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solared
(844) | | Have you ever been in a relationship with a pathological liar, they lie so well they don't even know the truth anymore.
Not only do they lie about serious things they lie just to lie. They lie about... | |
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superfemme
(10) | | Sad to say, happy endings are elusive for some. After a failed relationship, what are the things that you do to help you get by in the hope that someday you would be able to find peace in yourself... | |
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dbabcook
(341) | | This is an advice discussion. Have any of you ever been in a relationship in which you had fallen in love with your partner to have them tell you that they are not in love with you? I have known this... | |
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ibuemma
(1226) | | Just little analyzing, both is PAINFUL, You hardly can eat, give you tears, you can't sleep either.
better if you don't get any but if I have to chose I chose heartache,,I hate the DENTIST!! | |
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eszbonna
(369) | | i have. it was a really bad time in my life and sometimes i still go back to that frame of mind.
have u ever?
do u ever?
how do u get by it>? | |
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cmnavarro
(133) | | You may think that I'm happy even though I'm not. You may think that I'm fine, but the truth is I'm not. This only what I want people to see; but I can't take it no more, my smile is turning into a... | |
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ektarox
(59) | | hey everyone..now i am known that a lot has been said on this topic..it has been spoken about since centuries..but i still am curious to know what is the best way to getover breakups..how can you... | |
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cassaleo
(24) | | You know sometimes when you watch romantic girly movies as they say and get all teary eyed, and you just think about the prospect of true love. You wonder what does it all mean that everyone has... | |
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ORyansBelt2012
(2113) | | Have you ever felt like your heart is about to explode out of your chest?
Have you ever hurt so bad, an ache that just tears at your insides to the point that you don't eat because you're not... | |
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