Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

What are the two main components of the dermis?

1. Papillary dermis and reticular dermis

2. Epidermis and subcutaneous tissue

3. Reticular dermis and epidermal appendages

4. Subcutaneous tissue and fascia

The correct answer is: Papillary dermis and reticular dermis

The two main components of the dermis are indeed the papillary dermis and the reticular dermis. The papillary dermis is the uppermost layer, characterized by its thinness and its arrangement of loose connective tissue, which contains a rich supply of blood vessels and sensory nerve endings. This layer is critical for providing nutrients to the epidermis and plays a significant role in thermoregulation and sensation. Beneath the papillary dermis is the reticular dermis, which is thicker and made up of dense irregular connective tissue. This layer contains the bulk of the dermis, housing various structures, including larger blood vessels, hair follicles, and glands. The reticular dermis contributes to the skin's strength and elasticity, largely due to the abundant collagen and elastin fibers found within. Both layers work together to support the skin's architecture and function, making them essential in maintaining skin health and integrity.