Derma

Dermis: Structure and function of the deep layer of skin

The dermis, also known as the skin proper or corium, is one of the main layers of the skin of humans and many other mammals. It is located beneath the epidermis, the top layer of skin, and performs a number of important functions to support, protect and nourish the skin.

The structure of the dermis consists of a dense network of collagen and elastin fibers, which give it strength and elasticity. It also contains blood vessels, nerve endings, sebaceous glands, hair follicles and other structures that play an important role in the overall health and functioning of the skin.

One of the main functions of the dermis is to maintain the structural integrity of the skin. Thanks to its dense structure of collagen and elastin fibers, the dermis provides firmness and elasticity to the skin, allowing it to return to its original state after being stretched or compressed. This allows the skin to flexibly adapt to body movements and prevents the appearance of unnecessary wrinkles and folds.

In addition, the dermis plays an important role in protecting the skin from external influences. It serves as a barrier against pathogenic microorganisms, preventing the penetration of harmful substances and ultraviolet rays into the depths of the skin. Thanks to the presence of blood vessels, the dermis also provides oxygen and nutrients to the epidermis, promoting its renewal and wound healing.

Nerve endings located in the dermis play a key role in the sensation of various stimuli such as pain, pressure and pain. This allows us to sense and respond to our environment and alert us to potential skin damage.

The sebaceous glands, also present in the dermis, secrete sebum, an oily secretion that moisturizes and protects the skin. They help maintain optimal levels of moisture and pH of the skin, preventing it from drying out and causing irritation.

Although the dermis usually provides great protection for our skin, it is also susceptible to various diseases and conditions. Some of these include dermatitis, eczema, psoriasis, infections and injuries. If you have such problems, it is important to consult a dermatologist for diagnosis and treatment.

In conclusion, the dermis is an important layer of the skin that performs a number of functions related to supporting, protecting and nourishing the skin. Its structure, consisting of collagen and elastin fibers, provides strength and elasticity to the skin, allowing it to flexibly adapt to body movements. The dermis also acts as a barrier, protecting the skin from external influences and providing oxygen and nutrients to the epidermis. Nerve endings in the dermis allow us to sense various stimuli, and sebaceous glands help maintain optimal moisture levels and pH levels in the skin. Despite its importance, the dermis is also susceptible to various diseases and conditions that require professional intervention. Therefore, it is important to give proper attention and care to the dermis to ensure the health and well-being of our skin.

The dermis is the layer of skin that lies below the epidermis and performs various functions such as protection from external influences, regulation of body temperature and maintaining homeostasis. The dermis consists of several layers, each of which has its own characteristics and functions.

The first layer of the dermis is called the papillary layer and contains many papillae that provide skin with adhesion to other tissues. The second layer is a mesh layer that provides strength and elasticity to the skin. The third layer is the hypodermic layer, which contains fat cells and provides thermal insulation to the skin.

The functions of the dermis include protection from external influences such as ultraviolet radiation, chemicals and bacteria. It also regulates body temperature and maintains homeostasis by regulating metabolism and hormone release.

In addition, the dermis is involved in immune processes, as it contains a large number of lymphocytes and macrophages that protect the skin from infections.

However, despite its importance, the dermis can be susceptible to various diseases and damage. For example, with psoriasis or eczema, the skin may become dry and flaky, while with dermatitis or eczematic dermatitis, the skin may become red and itchy.

Thus, the dermis plays an important role in maintaining the health of the skin and the entire body as a whole. Therefore, it is necessary to take care of her health and protect her from various external influences.