Skin is an important and complex organ that performs various functions. It protects the body from external influences (mechanical, chemical, physical). Healthy and intact skin creates a reliable barrier to pathogens. She participates in the processes of respiration, excretion, thermoregulation; its role in metabolism and other vital processes is great.
The outer epidermal layer, or epidermis (I), is isolated in the skin. the skin itself – the dermis (II) and the subcutaneous tissue lying below it – the hypodermis (III).
The epidermis is formed by several dozen layers of epithelial cells lying one above the other. Its thickness is not the same everywhere, the thickest epidermis – up to 1.5 millimeters – has the skin of the soles, palms, and the thinnest – 0.03 millimeters – the skin of the eyelids. Continue reading