Topics: Heart Quiz
The passage of blood from the atria to the ventricles is regulated by which valves?
A. Interventricular
B. Interatrial
C. Semilunar
D. Atrioventricular
E. Pulmonary
Select your answer:

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Neurobiology › ViewWhat is the function of endorphins?
A. They increase heart rate
B. They act as natural painkillers
C. They stimulate hunger
D. They decrease breathing rate
Blood Typing › View
What is the blood type?
A. O+
B. B+
C. AB-
D. AB+