Suppose you cut your finger only slightly in what is known as a "paper cut." You observe that the cut hurts but it doesn't bleed. How would you interpret your observation?
A. Very thin cuts never draw blood but do sever nerves.
B. You probably have some unknown condition related to blood clotting.
C. The paper had some factor that prevented the release of blood but not the sensation of pain.
D. Nerve endings occur in epithelium but blood vessels do not.
E. The paper severed the skin, missing blood vessels, but hitting nerve endings.
Answer: D
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