What happens to the nerves in a full thickness burn?

• A. They heal completely and regain function
• B. They are destroyed, causing no pain sensation
• C. They remain intact, allowing for pain sensation
• D. They become hyperactive and cause excessive pain

Answer: (B)

In the case of a full thickness burn, the destruction of skin layers extends through the epidermis and dermis, reaching the underlying tissues. This level of damage affects nerve endings within these layers, leading to their destruction. Consequently, individuals with full thickness burns usually experience a loss of pain sensation in the burned areas due to the obliteration of the sensory nerve pathways. While the surrounding unburned areas may still transmit pain signals, the affected regions do not feel pain because of the nerve damage.

The concept that nerves heal completely and regain function applies to superficial burns, where damage is not as severe and healing processes are effective. Additionally, nerves remaining intact or becoming hyperactive would imply some level of functional capability, which is not the case in full thickness burns where nerve structures are severely compromised.