Question

chapter 13 end of chapter review question 2
1 part — of 1 point
_______ are receptors that can respond to painful stimuli.
○ mechanoreceptors
○ nociceptors
○ photoreceptors
○ chemoreceptors

Explanation:

To solve this, we analyze each option:

• Mechanoreceptors respond to mechanical stimuli (like pressure, touch), not pain.
• Nociceptors are specifically defined as receptors that detect painful (noxious) stimuli.
• Photoreceptors respond to light (e.g., in eyes), not pain.
• Chemoreceptors respond to chemical stimuli (e.g., taste, smell, blood chemistry), not pain.

So the correct option is Nociceptors.

Answer:

B. Nociceptors