The main functions of the skin are protection (barrier against ultraviolet radiation, microorganisms, and water loss), the synthesis of vitamin D, detection of sensation (e.g., touch, temperature, pain), and the regulation of body temperature. Consult a textbook for illustrations (e.g., pp. This site includes histology quizzes, histology games, slides, mnemonics, histology puzzles and tons of information about histology. A characteristic feature of the human skin is the apparent lack of hair (pili) on most of the body surface. All of the components of skin contribute to this variation. Each component has a unique structure, function, and histology. 42-43 in Histology for Pathologists, Sternberg, 1998; newer edition: Mills, Histology for Pathologists, 3rd ed., 2007). This is actually not quite true. A comprehensive, fun and entertaining site devoted exclusively to histology. One of the best histology sites on the internet! Skin & Appendages Dr. Shahbaz Ahmad PT DPT[UIPT][UOL] MS-MSK-PT [UIPT][UOL]* Lecturer [LIHS][LCPS] 2. -General functions of the integumentary system are: Protection from mechanical injury. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Skin appendages are derived from the skin and include hair, nails, and glands. 1 This maturation process is further outlined in Table 5-1. Structure of the skin This type of hair is called vellus hair. Skin varies markedly over different parts of the body. Learning histology was never so easy! Most of the skin is haired although the hair in most areas is short, fine and only lightly pigmented. skin and appendages Histology 1. Appendages of the Skin Hair. The skin appendages are epidermal and dermal derived components of the skin that include hair, nails, sweat glands, and sebaceous glands. Hair (with arrector pili muscle). Start studying Histology Lippincott Chapter 8 (Skin and Epidermal Appendages). Skin appendages are epidermal & dermal derived components of the skin that include hair, nails, sweat glands, and sebaceous glands. A maturing scar, however, does not fully recover its preinjury histology. Sebaceous glands. This new molecular histology of skin appendages is the foundation for forming new hypotheses on how molecules are mechanistically involved in skin appendage development and for designing experiments to test them. This may also lead to the modulation of healing and regeneration processes in future treatment modalities. Nails. Unit VII â Problem 8 â Histology: Skin & Appendages -The integumentary system consists of the skin and appendages which include: Sweat glands. Thickness of epidermis. There is complete loss of skin appendages, incomplete reformation of the rete ridges and papillary dermis, as well as alterations in the collagen fiber bundles. 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