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Evaluation

Answer all the questions

Read the paragraph below and fill in the missing words.

Systole

  • When the ventricular muscles , the cuspid valves (tricuspid and bicuspid) preventing of blood into auricles.
  • The volume of the ventricles decreases while .
  • This forces blood the heart to the lungs through semi-lunar valves and pulmonary artery, and to the body tissues via semi-lunar valve and aorta respectively.
  • At the same time the atria are with blood.
  • The left ventricle has thicker muscles than the right ventricle, and pumps blood for

 

Diastole

  • When ventricular muscles , the volume of each ventricle while pressure .
  • Contractions of atria force the bicuspid and tricuspid valves allowing blood from right atrium into right ventricle which oxygenated blood flows from left atrium into the left ventricle.
  • Semi-lunar valves close preventing the backflow of blood into ventricles.
  • The slight contractions of atria force the , blood flow into

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