Leaving cert biolody heart

  1. What is the function of the heart
    to pump blood around the body
  2. Describe how blood is pumped around the body
    Deoxygenated blood enters the heart via the vena cava and moves into the right atrium.

    It passes through the tricuspid valve into the right ventricle and then is pushed past the semi-lunar valves into the pulmonary artery where the blood is taken to the lungs to gain oxygen.

    When the blood gains oxygen it comes back to the heart via the pulmonary artery and is in the left ventricle. The blood flows past the bicuspid valves into the right ventricle and is then pushed up past semi-lunar valves where the oxygenated blood goes into the aorta and is pumped around the body.
  3. What is the pulmonary circuit
    Pumps to the lungs and back to the heart
  4. Systemic circuit
    Blood is carried to and from the heart to all body cells
Card Set
Leaving cert biolody heart