When we study the levels of organization of the human body, we learn that several cells grouped together and that perform the same function in the body are called tissue. These tissues, in turn, can group together, forming a structure responsible for a specific function in a given system. This structure, formed by several tissues, is called an organ. Given these important definitions, a question arises: Is the skin a tissue or an organ?
→ Is the skin a tissue or an organ?
The skin, despite its appearance, is an organ, not tissue as many people think. It is made up of two main layers, the epidermis and the dermis, which, in turn, are made up of different tissues. Therefore, the skin is an organ because it is made up of more than one tissue.
It is worth noting that the skin has a very impressive feature: it is the most extensive organ in our body. Studies reveal that 15% of all our body weight comes from the skin. In adults, this organ can weigh up to 10 kilograms.
The skin is formed by two basic layers: the epidermis and the dermis
The skin has multiple functions and is vital for our survival. Among the main functions assigned to it, we can mention the protection of our body, stimulus perception, elimination of some products of our metabolism and temperature control through the release of sweat produced by sweat glands.
→ The tissues that make up the skin
The skin is made up of two layers, an outer layer called the epidermis and an inner layer called the dermis. In the epidermis, we find tissue of the epithelial type, which is mainly formed by cells called keratinocytes. It is in this layer that we find the cells responsible for the production of melanin, the pigment that gives color to the skin and protects the body against the sun's rays.
Just below the epidermis, we find the dermis, which is made up of connective tissue. This layer is responsible for ensuring elasticity to the skin, in addition to being the place where nerves and vessels are present blood cells, hair follicles and glands, the latter two structures being derived from the epidermis, but present in the epidermis. layer.
Below the dermis is the hypodermis, a tissue that is not part of the skin but ensures that the dermis attaches to organs and that the skin slides more easily onto the surface it is resting on. The hypodermis is made up of loose connective tissue.
To learn more about the skin's basic features, access the text "Skin" on our website!
Take the opportunity to check out our video classes on the subject:
