Pregunta:
Contraction of the ventricles (ventricular systole)
Autor: Eva K 3sq0Respuesta:
- Ventricles contract, decreasing their volume, increasing their pressure - Atria relax - Blood moves from high to low pressure into the arteries - Pressure higher in ventricles than atria, forcing AV valves shut to prevent backflow - Pressure is also higher in ventricles than aorta + pulmonary artery - Forces open SL valves + blood forced out into these arteries
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