VENTRICULAR SYSTOLE

• WHAT HAPPENS IN VENTRICULAR SYSTOLE?

  1. Ventricle muscular walls contract
  2. Increases pressure in ventricles beyond atrial pressure
  3. Atrioventricular valves close
  4. Semi-lunar valves open
  5. Blood pushed out ventricles into the arteries (pulmonary artery and aorta)
• WHAT IS BLOOD PUSHED OUT THE VENTRICLES INTO?

  arteries (pulmonary artery and aorta)