n. Any of the superficial projections of the corium or dermis that interlock with recesses in the overlying epidermis, contain vascular loops and specialized nerve endings, and are arranged in ridgelike lines most prominent in the hand and foot.papilla of corium Langerhans cells 16. Angiogenesis 2. study of the structure, function, and disorders of the integumentary system: Term. The distinctive sheath of modified Schwann cells surrounds one or two nerve fibers poised to detect fine touch of the overlying epidermis. However, these terms are not always accurately descriptive of the three dimensional configuration of the region of interdigitation. The dermis consists of two layers: The papillary layer is a thin outer layer of areolar connective tissue with fingerlike projections called dermal papillae that protrude into the epidermis.In the hands and feet, the dermal papillae generate epidermal ridges (sweat from the epidermal ridges leaves fingerprints). NAME:_____ DATE:_____ Anatomy & Physiology Mr. DP is a group of specialized dermal fibroblast cells. The establishment of a dermal papilla (DP) is vital to the development of all hair follicles. Total Cards. Anatomy and Physiology. Hypodermis 14. Dermis 11. Desquamation 12. Adipose tissue 7. Capillaries 9. A high power view of the dermo-epidermal junction shows the characteristic architecture of a Meissner's corpuscle occupying a portion of a dermal papilla. Dermatology: Definition. Chapter 5- Integumentary System. Description. Epidermis: Definition. Pigmentation 6. Medical definition of papillary layer: the superficial layer of the dermis raised into papillae that fit into corresponding depressions on the inner surface of the epidermis. The hair follicle is an organ found in mammalian skin. Areolar connective tissue 8. dermal papilla: (plural = dermal papillae) extension of the papillary layer of the dermis that increases surface contact between the epidermis and dermis dermis: layer of skin between the epidermis and hypodermis, composed mainly of connective tissue and containing blood vessels, hair follicles, sweat glands, and other structures It resides in the dermal layer of the skin and is made up of 20 different cell types, each with distinct functions.The hair follicle regulates hair growth via a complex interaction between hormones, neuropeptides, and immune cells. Backer Chapter 4: The Skin and Its Parts 1. Tiny smooth involuntary muscle, attached to hair follicle and dermal papillae and cotracts when cold or frightened and produces goosebumps Sebaceous Gland a cutaneous gland that secretes sebum (usually into a hair follicle) for lubricating hair and skin Epidermis 13. Dermal papillae 10. Fibroblast 3. Anatomy of Hair Parts of the Hair. 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