Select your answer:
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Anatomy & Physiology: Respiratory › ViewThe left lung has ___ lobes, and the right lung has ___ lobes.
A. 3; 4
B. 1; 3
C. 3; 2
D. 2; 3
Circulatory System › View
These are flap like structures that prevent blood from flowing back to the body parts.
A. Veins
B. Cappilaries
C. Valves
D. None of the above