The structure that is important to the sense of pain is the free nerve endings.
The sense of pain
Pain can be felt when specific nerves detect tissue damage and transmit information about the damage along the spinal cord to the brain.
Pain Receptors which are also called free nerve endings. These receptors are found in the dermis around the base of hair follicles and close to the surface of the skin (epidermis) where the hair emerges from the skin.
These free nerve endings are capable of detecting tissue damage which can be felt as pain.
Therefore, the structure that is important to the sense of pain is the free nerve endings.
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