Introduction:
Nociceptors are the sensory neurons and are located in the deep structures of the body. The signals produced by these receptors in deep body tissues are biologically as well as clinically important.
Answer to Problem 1RAC
The correct answer is option (c) painful mechanical, chemical, or thermal stimuli.
Explanation of Solution
Explanation for the correct answer:
Option (c) painful mechanical, chemical, or thermal stimuli. Nociceptors are the neurons that sense the pain and respond to potentially damaging stimuli. These neurons respond to stimuli by transferring threat signals to the spinal cord and brain. So, the correct answer is option (c).
Explanation for incorrect answer:
Option (a) changes in temperature at the site of the receptor. Nociceptors respond to the extreme alterations in temperature that induce pain. So, this is an incorrect option.
Option (b) compression, bending, or stretching of cells. The compression, stretching of cells, or bending can stimulate the nociceptors. However, the stretching or bending outside a normal range only can cause pain. So, this is an incorrect option.
Option (d) light striking a receptor cell. The light striking a particular receptor cell must be strong enough to induce pain in order to trigger a nociceptor reaction. So, this is an incorrect option.
Nociceptors mainly respond to damaging stimuli such as painful mechanical, thermal, or
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Chapter 14 Solutions
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