Topics: Heart Anatomy Quiz
Valves in veins
A. support them
B. protect them
C. prevent the backward movement inside them
D. provide them elesticity
Select your answer:
Topics:
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The Musculoskeletal System › View Name this bone.
A. sternum
B. xyphoid process
C. coccyx
Psychopathology › View
What % of population suffers from OCD?
A. 15%
B. 10%
C. 5%
D. 2%