Text C. The Cardiac RhythmOne knows

Text C. The Cardiac RhythmOne knows that during the diastole the atria and ventricles take in (принимают) the blood. It has been determined that during the systole the atria and the ventricles discharge out the blood. The diastole of the ventricles takes place during the systole of the atria, and the systole of the ventricles takes place during the diastole of the, atria. These functions of the atria and the ventricles compose the cardiac rhythm.The cardiac cycle lasts 0.9 second. The contraction of the atria lasts 0.2" and that of the ventricles 0.3". When the atria contract the ventricles are at rest. The diastole or the period of rest of the cardiac muscle lasts 0.4".So during one cardiac cycle the ventricles work 0.3" but rest 0.6". The period of contraction of the ventricles is longer than that of the atria and the systolic blood pressure is always Higher than the diastolic one. Such an interesting cardiac rhythm which enables the heart to rest longer than to work is very important for the blood circulation.If the period of cardiac rest has become constantly shorter, the rate of heartbeat increases. Such an increased rate of heartbeat may affect [a’fekt] (поражает) the heart and produce different cardiac diseases.

Результаты (английский) 1:

C. Text of the Cardiac Rhythm
One knows that during the diastole the atria and ventricles take in (принимают) in the blood. It has been determined that during systole the atria and the ventricles of the discharge out of the blood. The diastole of the ventricles takes place during the systole of the atria, the ventricles takes place during the systole and the diastole of the, atria. These functions of the atria and the ventricles of the cardiac rhythm compose.
Lasts 0.9 second of the cardiac cycle. The contraction of the atria Lasts 0.2 "and 0.3 that of the ventricles." When the atria to the ventricles contract at the rest are. The diastole of the cardiac muscle or the rest of the period 0.4 Lasts. "
So during one cycle of the cardiac ventricles work 0.3 "to 0.6 but rest." The period of contraction of the atria and the ventricles is longer than that of the systolic blood pressure is always Higher than the diastolic one. Such an interesting longer than the rest to the heart enables cardiac rhythm, which is very important to work for the blood circulation.
If the period of rest has become cardiac constantly shorter, increases the rate of the heartbeat. Such an increased rate of heartbeat may affect [afekt] (поражает) the heart and produce different cardiac diseases.