2.66 understand the general structure of the circulation system to include the blood vessels to and from the heart, the lungs, the liver and the kidneys.

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  • Circulatory system is responsible for getting blood to cells so that useful substances (eg. glucose and oxygen) can be delivered and that waste products such as urine and carbon dioxide can be expelled
  1. Pulmonary vein takes oxygenated blood from the lungs to the left atrium (pumps it into the left ventricle)
  2. Oxygenated blood then travels through the aorta from the left atrium of the heart into the brain, around the body including the gut, liver and kidneys
  3. Aorta changes to the hepatic artery when transporting blood to the liver. Renal artery when transporting blood to the kidneys
  4. Hepatic portal vein takes the blood from the gut to the liver
  5. Going back to the heart, renal vein takes the deoxygenated blood from the kidney. Hepatic vein takes the deoxygenated blood from the liver, changes to the vena cava, vena cava takes deoxygenated blood from the brain
  6. Deoxygenated blood from the vena cava is then taken to the right atrium, later taken to the right ventricle
  7. Pulmonary artery takes the deoxygenated blood from the right ventricle into the lungs to be oxygenated
  • Pulmonary – to/from lungs
  • Hepatic – to/from the liver
  • Renal – to/from the kidneys
  • Aorta – artery
  • Vena cava – vein

 

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