Papillae, also known as dermal papillae, are projections of loose connective tissue from the dermis that rise upward between the surrounding epidermal ridges.
Loose areolar connective tissue makes up the papillary portion of the dermis. Its finger-like extensions, known as papillae, which reach toward the epidermis and contain terminal networks of blood capillaries, gave rise to its name.
Deep beneath the epidermis and lying on top of the subcutaneous fat layer is the dermis, a layer of connective tissue with mesenchymal origin. [1] The dermis is mostly fibrous in composition and is made up of elastic and collagen fibres.
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