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A-Level Biology OCR A

Pulmonary Blood Systemic Carried Lungs Body Deoxygenated Ventricle

Pulmonary circulation carries deoxygenated blood from the right ventricle to the lungs via the pulmonary artery and oxygenated blood back to the left atrium via the pulmonary vein, operating at lower pressure. Systemic circulation carries oxygenated blood from the left ventricle to the body via the aorta and deoxygenated blood back to the right atrium via the venae cavae, operating at higher pressure.

Pulmonary circulation carries deoxygenated blood from the right ventricle to the lungs via the pulmonary artery and oxygenated blood back to the left atrium via the pulmonary vein, operating at lower pressure. Systemic circulation carries oxygenated blood from the left ventricle to the body via the aorta and deoxygenated blood back to the right atrium via the venae cavae, operating at higher pressure.

Front Draw a table to show differences between pulmonary and systemic circulation.
Back Pulmonary vs systemic circulation:


PulmonarySystemic
  • Deoxygenated blood from right ventricle carried to lungs thru pulmonary artery
  • Oxygenated blood from lungs to left atrium thru pulmonary vein
  • Blood carried to and from lungs
  • Releases CO2 from and obtains O from the lungs from the air
  • Lower pressure because pulmonary arteries less resistant
  • Oxygenated blood carried from left ventricle to rest of the body thru the aorta
  • Deoxygenated blood from body to right atrium thru venae cavae
  • Blood carried to and from the body
  • Provides nutrients and O to body cells & removes their waste and CO2
  • Higher pressure bc systemic arteries more resistant

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