What is the thickness of the epidermis of the skin?

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What is the thickness of the epidermis of the skin?​

It’s thickest on the palms of the hands and soles of the feet (1.5 millimeters). There are five layers of the epidermis: Stratum basale: This bottom layer, which is also known as the basal cell layer, has column-shaped basal cells that divide and push older cells toward the surface of the skin.

Where is the second layer of the epidermis located?​

Stratum Spinosum. This is the second layer of the epidermis, which consists of 5 to 15 layers of polygonal cells. It is located just above the stratum basale containing the Langerhans cells. These cells are a part of the immune system and scavenge on viruses and bacteria to keep the skin safe from infections.
What is the function of the epidermis in the skin?
All layers of the skin, including the epidermis, are responsible for the protection of the body, including internal organs, muscles, nerves, and blood vessels. Some roles of the epidermis include: Production of new skin cells. Production of melanin to give color to the skin and reduce the absorption and impact of ultraviolet radiation.
What is stratum basale in the epidermis?
Stratum Basale. The bottom layer of the epidermis is called the stratum basale. This layer contains one row of column-shaped keratinocytes called basal cells. These cells are constantly dividing and pushing already-formed cells towards the skin’s surface. As basal cells move into the upper layers, they will also flatten, die,…

The thickness of the epidermis varies in different types of skin; it is only .05 mm thick on the eyelids, and is 1.5 mm thick on the palms and the soles of the feet. The epidermis contains the melanocytes (the cells in which melanoma develops), the Langerhans’ cells ( involved in the immune system in the skin),…

What is dermis in histology?​

Histology, Dermis – StatPearls – NCBI Bookshelf The dermis is a connective tissue layer sandwiched between the epidermis and subcutaneous tissue. The dermis is a fibrous structure composed of collagen, elastic tissue, and other extracellular components that includes vasculature, nerve endings, hair follicles, and glands.

What is the structure of the papillary dermis?​

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. Collagen is the principal component of the dermis. Specifically, type I and type III collagen are found in abundance.