A-LevelBiologyTransport in mammals9700/12 · Feb/Mar 2024 · Q321 Mark
One type of congenital heart defect is where the left and right atria are not completely separated. This is called an atrial septal defect (ASD). ASD usually results in blood moving from the left atrium into the right atrium. This causes increased blood pressure in the right atrium and decreased blood pressure in the left atrium. Which row describes other effects caused by ASD?
Ablood pressure in pulmonary artery: decreased, blood pressure in aorta: increased, % oxygenation of blood in pulmonary artery: decreased
Bblood pressure in pulmonary artery: decreased, blood pressure in aorta: increased, % oxygenation of blood in pulmonary artery: increased
Cblood pressure in pulmonary artery: increased, blood pressure in aorta: decreased, % oxygenation of blood in pulmonary artery: decreased
Dblood pressure in pulmonary artery: increased, blood pressure in aorta: decreased, % oxygenation of blood in pulmonary artery: increased
✓ Correct answer
D: blood pressure in pulmonary artery: increased, blood pressure in aorta: decreased, % oxygenation of blood in pulmonary artery: increased
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