Question

Dermis has a layer known as
A) Both B and D
B) Papillary region
C) Pupillary region
D) Reticular dermis

Answer 1

The dermis is a connective tissue layer sandwich between the epidermis and subcutaneous tissue. The dermis is a fibrous structure composed of collagen, elastic tissue, and other extracellular. Components that include vasculature, nerve endings, hair follicles, and glands.

Complete Answer:
- The dermis is a connective tissue layer of mesenchymal origin located deep to the epidermis and superficial to the subcutaneous fat layer. The composition of the dermis is mainly fibrous, consisting of both collagen and elastic fibres. Between the fibrous components lies an amorphous extracellular Ground substance containing glycosaminoglycans, such as hyaluronic acid, proteoglycans and glycoproteins.
- The dermis is divided into two layers, the papillary dermis and the reticular dermis. The papillary dermis is the superficial layer, lying deep to the epidermis. The Papillary dermis is composed of loose connective tissue that is highly vascular. The reticular layer is the deep layer, forming a thick layer of dense connective tissue that constitutes the bulk of the dermis.

So the correct answer is A both b and D.

Note: The role of the dermis is to support and protect the skin and deeper layers, assist in thermoregulation, and aid in sensation. Fibroblasts are the primary cells within dermis, but histiocytes, mast cells, and adipocytes also pay important roles in maintaining the normal structure and function of dermis. The structure of the dermis provides a connective tissue framework for strength, flexibility and protection of the deeper anatomical structure.