Skin Write for Us

The skin is the enormous organ of the body. The integumentary system comprises the skin and its derivatives (hair, nails, sebaceous, and sweat glands)hair, nails, sebaceous, and sweat glands) comprise the integumentary system. So among the main functions of the skin is protection. It protects the body from external factors such as bacteria, chemicals and temperature. In addition, the skin contains secretions that can destroy bacteria and melanin, a chemical pigment that serves as a defence against ultraviolet rays that can damage skin cells.

Another essential function of the skin is the regulation of body temperature. When the skin is bare to a cold temperature, the blood vessels in the dermis contract, which means that the warm blood does not enter the skin, so it acquires the temperature of the cold environment to which it is exposed.

Functions

The skin has different functions, more or less marked depending on the species in question.

The protection barrier against the external environment is within the first immunological barrier.

Mimicry: allows camouflage.

Respiration: cutaneous respiration occurs in amphibians; Therefore, nutrient uptake includes oxygen in the case of the parasites mentioned above.

Excretion: this is the case of sweat, very diluted urine that, in addition to eliminating harmful substances, also reduces body temperature.

Diagnostic role: observing its appearance, diseases of the skin (leprosy, scabies, etc.) and other body parts can be detected (see Dermatology section ). In addition, it is an indicator of the age of the individual.

General Functions

The various components of the skin perform the following functions:

It represents a protective barrier against the invasion of microorganisms and the action of mechanical, chemical, thermal and osmotic agents.
So it has a pigment, melanin, responsible for giving color to the epidermis and protecting the underlying tissues from ultraviolet radiation.
Through the dermal lymphatic and blood vessels, substances that pass through the epidermis are absorbed, such as some medications (lotions, creams or ointments).
By action of ultraviolet radiation in the dermis, vitamin D, important in calcium metabolism, is synthesized.

Types

Soft: It is the one found on the eyelids and genital areas
Thick: So it is located on the lips, palms of the hands and soles of the feet. With a highly developed stratum corneum and a more yellowish color due to the high keratin content
Thin: Typical of women and covered body areas. With a fine horny layer, with a uniform surface and hardly visible pores. Therefore, on back of the hands is fragile.
Toned: Taut and flexible.
Sagging: Therefore, it has lost elasticity and recovery capacity after being subjected to a deformation. Flaccidity increases with age or occurs after sudden weight loss.
Oily: So it presents an increased activity of the sebaceous glands
Dry: A decrease in water content hinders its barrier function.
Normal: With a hydrolipidic layer in balance with the amount of water and lipids necessary
Sensitive: It has a lower tolerance threshold than normal skin, suffers sensations of discomfort such as heat, tightness, and redness and is fragile.

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