Introduction

The skin is the largest organ of the body and is divided into three main layers: the epidermis, the dermis and the subcutaneous layer. In this article we will focus on the differences between the epidermis and the dermis.

epidermis

The epidermis is the outermost layer of the skin and is composed primarily of cells called keratinocytes. These produce a protein called keratin, which provides protection and resistance to the skin. The epidermis also contains cells called melanocytes, which produce melanin, the pigment that determines skin color. Finally, the epidermis acts as a barrier against water loss and external microorganisms.

Layers of the Epidermis

• Horny layer: The outermost layer of the epidermis and is made up of dead cells filled with keratin.
• Granular layer: This layer contains cells that produce keratin and lipids.
• Thorny layer: It contains cells that adhere to each other and protect the skin from external aggression.
• Basal layer: The deepest layer of the epidermis that has cells that produce keratin and melanin.

dermis

The dermis is the middle layer of the skin and is made up of connective tissue, blood vessels, nerves, and structures such as hair follicles and sebaceous glands. The dermis provides support, elasticity and helps regulate body temperature.

Layers of the Dermis

• Papillary: The most superficial layer of the dermis, which contains blood vessels, fibers and nerve endings. In this layer is the contact with the epidermis.
• Reticular: The deepest layer of the dermis that contains collagen and elastin fibers.

Conclusion

In short, the epidermis and dermis are two different layers that make up the skin. The epidermis is the outermost layer and acts as a protective barrier, while the dermis is the middle layer that provides support and elasticity to the body. Both layers are crucial to healthand well-being of our skin.

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