Heart

• Left side of the heart goes to the rest of the body

  Right side of the heart goes to the lungs
• The heart is a double circulatory system:

  1. Deoxygented blood flows into the right atrium and into the right ventricle which is pumped into the lungs to undego gaseous exchange
  2. Oxygenated blood flows into left atrium and them into the left ventricle which pumps oxygenated blood around the body
• Process of the blood going around the body:

  1. Blood flows into right artium through the vena cava, and left atrium through the pulmonary vein
  2. Atria contracts forcing the blood into the ventricles
  3. Ventricles contract, pushing blood in the right ventricle into pulmonary artery to be taken to lungs, while the left ventricle the blood goes to the aorta to be taken to the body
  4. As thus happens valves close to make sure blood does not flow backwards
• Heart - an organ that pumps blood around the body in a double circulatory system
• Which two ventricles carry deoxygenated blood;

  • Vena cava
  • Pulmonary artery
• Which two ventricles carry oxygenated blood;

  • Pulmonary vein
  • Aorta
• Flow of blood;

  A) Vena Cava

  B) Pulmonary artery

  C) Pulmonary vein

  D) Aorta