Dermis
middle layer of skin
The dermis is the middle layer of the skin located beneath the epidermis and above the hypodermis. It is a dense layer of connective tissue that contains a variety of structures such as blood vessels, nerves, hair follicles, sweat glands, and sebaceous glands. The dermis is responsible for providing the skin with its strength and elasticity.
The dermis is composed of two layers: the papillary layer and the reticular layer. The papillary layer is the thin superficial layer that is in contact with the epidermis. It contains finger-like projections called papillae that interlock with the epidermis to provide mechanical support. The papillary layer also contains blood vessels, nerves, and immune cells that help to support the skin function.
The reticular layer is the deeper and thicker layer of the dermis. It contains dense connective tissue made up of collagen and elastin fibers, which is responsible for providing strength, flexibility, and support to the skin. The reticular layer also contains blood vessels, nerves, and various skin structures such as hair follicles and glands.
In summary, the dermis is a vital layer of the skin that provides both structural integrity and support to the skin, as well as the various structures and functions associated with the skin.
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