Which type of receptors are responsible for detecting pain?

Nociceptors are specialized sensory receptors that are specifically responsible for detecting pain. They respond to potentially damaging stimuli by sending signals to the brain, informing it of the presence of pain. This type of receptor is crucial for the body's ability to perceive injury and protect itself from further harm, as they are activated by harmful mechanical, thermal, or chemical stimuli.

In contrast, thermoreceptors detect changes in temperature, photoreceptors are involved in sensing light and are essential for vision, and mechanoreceptors respond to mechanical pressure or distortion, such as touch or vibration. Understanding the distinct roles of these receptors helps clarify why nociceptors are uniquely positioned as the pain receptors in the body.