the papillary layer of the dermis is located adjacent to the epidermis.
the papillary layer of the dermis is located adjacent to the epidermis.
where is the papillary layer of the dermis located?
adjacent to the epidermis
the dermis or corium is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from stress and strain. it is divided into two layers, the superficial area adjacent to the epidermis called the papillary region and a deep thicker area known as the reticular dermis. the dermis is tightly connected to the epidermis through a basement membrane. structural components of the dermis are collagen, elastic fibers, and extrafibrillar matrix. it also contains mechanoreceptors that provide the sense of touch and thermoreceptors that provide the sense of heat. in addition, hair follicles, sweat glands, sebaceous glands (oil glands), apocrine glands, lymphatic vessels, nerves and blood vessels are present in the dermis. those blood vessels provide nourishment and waste removal for both dermal and epidermal cells.
dermis
the dermis is the middle layer of skin, 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. one is the papillary layer which is the superficial layer and consists of the areolar connective tissue. the other is the reticular layer which is the deep layer of the dermis and consists of the dense irregular connective tissue. these layers serve to give elasticity to the integument, allowing stretching and conferring flexibility, while also resisting distortions, wrinkling, and sagging. the dermal layer provides a site for the endings of blood vessels and nerves. many chromatophores are also stored in this layer, as are the bases of integumental structures such as hair, feathers, and glands.
integumentary system