★ Basics of Cardiology Quiz
Which valve prevents backflow of blood into the right atrium?
A. Aortic valve
B. Pulmonary valve
C. Tricuspid valve
D. Bicuspid valve
Select your answer:

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Psychopathology › ViewWhat gene leads to high levels of dopamine which could also be a cause of OCD?
A. BOMT Gene
B. HOMT Gene
C. COMT Gene
D. SOMT Gene
The Human Body › View
Which of these tubes carries air in the lungs?
A. bronchi
B. blood vessel
C. trachea
D. larynx