This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Burns, Subject name: Surgery
[{'content': 'Superficial paial thickness burn is caused due to involvement of: \nSelect and explain. \nA. Epidermis, B. Papillary dermis, C. Reticular dermis, D. Dermis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: First-degree (superficial) burns: Involves only the epidermis The burn site is red, painful, dry, and with no blisters. Second-degree (paial thickness) burns: Second-degree burns involve the epidermis and pa of the upper (papillary) dermis layer of skin. The burn site appears red, blistered, and may be swollen and painful. Third-degree (full thickness) burns: Third-degree burns destroy the epidermis and dermis and may go into the subcutaneous tissue. The burn site may appear white or charred Fouh degree burns: Fouh degree burns also damage the underlying bones, muscles, and tendons. There is no sensation in the area since the nerve endings are destroyed.', 'role': 'assistant'}]