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The skin is the largest organ of the human body and plays a variety of roles in protecting regulating and maintaining homeostasis. It consists of two main layers the epidermis and the dermis each with its own specific functions and structures.

  • The epidermis is the outer layer of skin and is composed of four distinct layers: the stratum basale stratum spinosum stratum granulosum and stratum corneum. The stratum corneum is the outermost layer and is made of flattened dead skin cells that form a protective barrier against the environment.
  • The dermis is the inner layer of the skin and is composed primarily of connective tissue collagen and elastin. This layer contains sweat glands sebaceous glands nerve endings and blood vessels. It also provides strength flexibility and resilience to the skin.

The skin plays a number of important roles in protecting the body. It helps to keep the body temperature regulated prevents dehydration and protects against the entry of pathogens ultraviolet light and other environmental toxins. It also plays an important role in sensory perception and communication as it contains many nerve endings that detect pressure pain and temperature.

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Ferne Streich

Lvl 13
2y ago

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