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22 votes
22 votes
Why does an injured area hurt?

a) increase temperature in the area stimulates pain receptors
b) histamine stimulate pain receptors
c) swelling in the area stimulates pain receptors​

User Hurb
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2 Answers

2 votes
2 votes
Histamine stimulate pain receptors
User Oleg Sherman
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I think the answer is A because of the temperature change on the area
User Bundy
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