Pain receptors protects the body because they are stimulated when there is tissue damage, thereby promoting a response that may prevent further damage.
Pain receptors are a group of sensory neurons which have specialized nerve endings distributed throughout the skin, tissues and visceral organs.
The pain receptors are activated when they receive a stimulus for tissue damage and send it to the spinal cord which responses by producing a sensation of pain in the effected area.
The pain receptors can be of three types in peripheral tissue- mechanical, heat and chemical pain receptors.
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