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биология; сердце

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эластичные трубки, которые, разветвляясь, уменьшаются в диаметре вплоть до мельчайших сосудов - капилляров кровеносные сосуды
движение крови в организма человека кровообращения
полый мышечный орган, который переодически сокращается и выталкивает кровь в сосуды сердце
несут кровь от сердца артерии
самая крупная артерия аорта
несут кровь в сердце вены
околосердечная сумка. внутри нее содержится серозная жидкость, увлажняющая серее и уменьшающая трение при его сокращениях перикард
способность сердца сокращается независимо от каких-либо внешних раздражителей, автоматизм обеспечивают особые мышечные клетки. автоматия сердца
Created by: mashamasha
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