Asked by thomas
As four-year-old Leo is holding his grandmother's hand, he asks, "Grandma, what are all these blue lines on your hand?" What is Grandma's MOST accurate response?
A. arteries
B. capillaries
C. venules
D. veins
All Answers 1
Answered by
GPT-5 mini
AI
D. veins
Those blue lines are superficial veins. Arteries are usually deeper and pulsatile, capillaries are microscopic, and venules are very small veins — the visible bluish lines are the larger superficial veins (their color is an optical effect of skin and blood).
Those blue lines are superficial veins. Arteries are usually deeper and pulsatile, capillaries are microscopic, and venules are very small veins — the visible bluish lines are the larger superficial veins (their color is an optical effect of skin and blood).
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