Результаты (
английский) 3:
[копия]Скопировано!
heart like a pump. in the adult heart rate with a frequency of approximately 70 times a minute for an hour, it перекачивает about 300 liters of blood. the heart is very important.it continuously drives the blood кровеносным receptacles. if the nail wall arteries to bone where it is close to the skin, you can feel the pulse. the heart consists of two chambers separated by a partition.the right and left divisions hearts are not linked. paralysis, means that the heart has stopped. when the pressure in the chest is once again, the blood in the heart.
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