Topics: Heart Structure and Double Circulation Quiz
These are the oxygen carrying cells of the blood.
A. red blood cells
B. plasma
C. white blood cells
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Which one correctly describes a vein?
A. Low blood pressure, large lumen, valves present
B. Low blood pressure, small lumen, valves present
C. Low blood pressure, small lumen, valves absent
D. High blood pressure, large lumen, valves absent