During an ultrasound scan, a vessel is seen carrying blood from the lungs into the left atrium. The scan report must name the vessel and state whether the blood in it is oxygenated or deoxygenated.
Which entry should be added to the scan report?
pulmonary artery; oxygenated blood
pulmonary vein; deoxygenated blood
pulmonary vein; oxygenated blood
vena cava; deoxygenated blood
67 exam-style questions on Edexcel GCSE Biology 8.2 Blood and circulation, covering 8.2.1 Structure and function of the blood, 8.2.2 Structure of blood vessels, 8.2.3 Structure of the heart and circulatory system, and 8.2.4 Cardiac output. Each one has a worked solution and a mark scheme showing where the marks go.