An adult old man gets burn injury to his hands. Over a few weeks, the burned skin heals without the need for skin grafting. The most critical factor responsible for the rapid healing in this case is –
Correct Answer: Remnant skin appendages
Description: The skin consists of two layers
1. Epidermis
Most superficial layer of the skin. It is constantly replaced from the basal layer.
2. Dermis
It is thicker than epidermis and supplies the strength and integrity to the skin
It has a rich blood supply
It contains adnexal structures i.e.→ Hair follicles, Sebaceous glands, Sweat glands.
The importance of these adnexal structures is that they contain epithelial cells that can proliferate and can heal a partial thickness wound by epithelialisation.
Superficial burns
Involve only epidermis and superficial dermis
The adnexal structures are left intact so they can heal by epithelialisation.
Deep burns
In deep burns, all the adnexal structures are lost so they can only heal by secondary intention with scarring.
Presence of granulations simply indicate healing, one cannot tell whether it is healing by primary intention or by secondary intention.
Category:
Pathology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now