Topics: Heart Anatomy Quiz
The pumping cycle begins when oxygen deprived blood returns from the body through the _______________ and ___________.
A. right coronary, left coronary arteries
B. superior vena cava, inferior vena cava
C. right pulmonary vein, left pulmonary vein
Select your answer:

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Autoimmune Disease › ViewWhich of the following is the most characteristic skin manifestation of SLE?
A. Butterfly (malar) rash
B. Hyperpigmentation of the face
C. Vitiligo
D. Alopecia areata
Cell Transport › View
The picture is an example of _________________.
A. osmosis
B. isotonic
C. diffusion
D. active transport