The right atrium receives blood directly from
A. the superior vena cava, inferior vena cava, and pulmonary veins.
B. the superior vena cava and inferior vena cava only.
C. the superior vena cava, inferior vena cava, and coronary sinus.
D. the pulmonary veins.
Answer: C
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____________________ matter consists predominantly of densely packaged cell bodies and dendrites, whereas ____________________ matter consists of bundles of myelinated nerve fibers
Fill in the blank(s) with correct word
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