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Loose connective tissue, also known as areolar tissue, is a cellular connective tissue with thin and relatively sparse collagen fibers. It is located beneath the epithelia that cover the body surfaces and line the internal surfaces of the body, and it is also associated with the epithelium of glands and surrounds the smallest blood vessels.
The papillary dermis is the uppermost layer of the dermis. It intertwines with the rete ridges of the epidermis and is composed of fine and loosely arranged collagen fibers. [ 2 ] The papillary region is composed of loose areolar connective tissue .
The dermis is the underlying connective tissue layer that supports the epidermis. It is composed of dense irregular connective tissue and areolar connective tissue such as a collagen with elastin arranged in a diffusely bundled and woven pattern. The dermis has two layers: the papillary dermis and the reticular layer.
Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation. It is composed of two primary layers: the epidermis and the dermis, each with different structures and functions.
The lamina propria is a thin layer of loose (areolar) connective tissue, which lies beneath the epithelium, and together with the epithelium and basement membrane constitutes the mucosa. As its Latin name indicates, it is a characteristic component of the mucosa, or the mucosa's "own special layer."
Fascia is a term for membranous bodily structures that surround and connect muscles, nerves and organs. Learn about the different types, functions and clinical significance of fascia, as well as the Fascial Net Plastination Project that visualizes the human fascial network.
Dense irregular connective tissue is composed mostly of collagen fibers and fibroblasts. It is found in the reticular layer of the dermis, the sclera, the submucosa of the digestive tract, and other structures.
Learn about the three primary layers of human skin: epidermis, dermis and hypodermis, and their functions and features. The epidermis is the outermost layer of keratinized cells that protects the body from infection and regulates temperature, while the dermis is the middle layer of connective tissue that contains blood vessels, nerves and hair follicles.