Washington Esthetician State Board Practice Exam

What layer serves as the connection between the dermis and the epidermis?

1. Reticular layer

2. Hypodermis

3. Stratum basale

4. Papillary layer

The correct answer is: Papillary layer

The correct response identifies the papillary layer as the connection between the dermis and the epidermis. This layer, which is part of the dermis, consists of loose connective tissue that contains thin collagen and elastin fibers. It includes small projections called dermal papillae that extend into the epidermis, increasing the surface area for exchange of oxygen, nutrients, and waste between the dermis and epidermis. This anatomical structure is essential for providing support and nourishment to the epidermis, as it is avascular and relies on these connections for its metabolic needs. Other layers mentioned, such as the reticular layer, hypodermis, and stratum basale, serve different roles. The reticular layer lies beneath the papillary layer and is thicker, providing strength and elasticity to the skin, but it does not have direct contact with the epidermis. The hypodermis, also known as subcutaneous tissue, is deeper still and anchors the skin to underlying structures but does not connect to the dermis and epidermis in the same way. The stratum basale, on the other hand, is a layer of the epidermis itself and is responsible for the generation of new epidermal cells, but it does not serve as a