Pain receptors, also known as nociceptors, are stimulated by things that cause tissue damage, such as mechanical, thermal, or chemical stimuli. They are specialized nerve endings that respond to harmful stimuli by sending signals to the brain, resulting in the sensation of pain.

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Pain Receptors

Question 15

Multiple Choice

Pain receptors

A) reduce in sensitivity in the presence of a constant stimulus.
B) increase in sensitivity in the presence of a constant stimulus.
C) are stimulated by things that cause tissue damage.
D) adapt rapidly.
E) are widely distributed in all tissues.

Correct Answer: