O-LevelBiologyTransport in Humans5090/11 · May/June 2014 · Q131 Mark
Which sequence shows the shortest route taken by blood travelling from a leg to an arm in the human body?
Aleg → heart → lungs → heart → arm
Bleg → heart → lungs → kidney → arm
Cleg → kidney → heart → lungs → arm
Dleg → lungs → heart → alimentary canal → arm
✓ Correct answer
A: leg → heart → lungs → heart → arm
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