Ebook Netter''s essential histology (2nd edition): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Netter''s essential histology (2nd edition): Part 2
Ebook Netter''s essential histology (2nd edition): Part 2
11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo Ebook Netter''s essential histology (2nd edition): Part 2ofKeratinocytes11.6Histology and Function of Epidermal Melanocytes11.7Ultrastructure of Melanocytes and Melanogenesis11.8Structure and Function of Epidermal Langerhans Cells11.9Histology and Vasculature of the Dennis11.1Histology and Innervation of the Dermis11.11Histology and Function of Eccrine Sw Ebook Netter''s essential histology (2nd edition): Part 2eat Glands11.12Histology and Function of Apocrine Sweat Glands11.13Histology of Pilosebaceous Units: Hair11.14Histology and Function of PilosetoaceousEbook Netter''s essential histology (2nd edition): Part 2
Units: Hair Follicles and Hair Growth11.15Ultrastructure of Hair and its Follicles11.16Histology of Sebaceous Glands and Arrector Pili Muscles11.17Ul11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo Ebook Netter''s essential histology (2nd edition): Part 2kin and its appendages that shows the epidermis, dermis, and subcutaneous tissue.11.1OVERVIEWThe integument, the largest organ of the body, is composed of skin and skin appendages—nails, hair, sweat glands, and sebaceous glands. The total weight and overall surface area of skin in the adult are 3-5 Ebook Netter''s essential histology (2nd edition): Part 2kg and 1.5-2 nr. respectively. Skin thickness, between 0.5 and 3 mm. varies regionally; skin is thickest on the back and thinnest on the eyelid. At muEbook Netter''s essential histology (2nd edition): Part 2
cocutaneous junctions, skin is continuous with mucous membranes lining digestive, respiratory, and urogenital tracts. As well as serving as a protecti11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo Ebook Netter''s essential histology (2nd edition): Part 2ation, vitamin D synthesis, ion excretion, and sensory reception (touch and pain), and It has a remarkable regenerative capacity. It consists of stratified squamous keratinized epithelium on its outer part, called the epidermis, and an inner layer of fibrous connective tissue, called the dermis. A l Ebook Netter''s essential histology (2nd edition): Part 2oose layer of subcutaneous connective tissue, the hypodermis, attaches skin to underlying structures and permits movement over most body parts. Skin hEbook Netter''s essential histology (2nd edition): Part 2
as a dual embryologic origin: Epidermis and its appendages derive mostly from surface ectoderm; dermis originates from mesoderm. The epidermis consist11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo Ebook Netter''s essential histology (2nd edition): Part 2which derive from neural crest, and Langerhans cells, which have a monocytic origin. During embryonic development, skin appendages deriving from the epidermis grow down into the dermis.CLINICAL POINTCutaneous burns are classified according to depth of damage to the skin. First-degree (or iupetfietol Ebook Netter''s essential histology (2nd edition): Part 2) burns are limited to epidermis, in which the skin presents with m ihtma and may peel; mild sunburn is a common example. Second-degree (or ptvilùi-lhEbook Netter''s essential histology (2nd edition): Part 2
ỉcbieuị burns, often caused by scalding, extend into deep (reticularI dermis, leading to inflammation. severe pain, and blister formation with little 11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo Ebook Netter''s essential histology (2nd edition): Part 2thelial cells surrounding hair follicles and sweat glands. More serious third-degree lor fitll-thicknest) burns extend through the entire dermis with severe damage that may reach deeper subcutaneous layers. Because these burns are so deep, they cause little or no pain because of destruction of nerve Ebook Netter''s essential histology (2nd edition): Part 2s and nerve endings. Such cases usually require special treatment (eg.. ikin grafting) for healing-4 Light micrograph (LM) of thick skin showing its aEbook Netter''s essential histology (2nd edition): Part 2
rchitectural organization in vertical section at low power, The epidermis 'ĨPI arid dermis (De) are clearly shown. The interface between tie thick, ke11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo Ebook Netter''s essential histology (2nd edition): Part 2nd plkxsebaceois units, wliich consist ot naif. nair Glides, arrcctor pill muscfcs. and scbacarxis glands. Bleed vessels (BV) and Pacinian corpuscles (PC) also appear In me damns and hypodermis. 2bx. IK!▼ LM of thin skin at the same magnification. A thinner epidermis (Ep) overlies lire dermis (Dei. Ebook Netter''s essential histology (2nd edition): Part 2which consists of strands of dense connective tissue filers. Epidermal ridges are shalkiw. aitd Dre kerahri layer is relatively Uwi. Tire dermis contaEbook Netter''s essential histology (2nd edition): Part 2
ins trail fdlides (HF). sebaceous glands (Sebi. aird sweat glands (S6). 2bx. H&E.11.2HISTOLOGY OF THICK AND THIN SKINOn the basis of the structural co11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo Ebook Netter''s essential histology (2nd edition): Part 2es of the feel: thin skin covers most of the remaining body surface. Whereas the multilayered epidermis of thick skin is O.S-1.5 mm thick, the epidermis of thin skin is 0.07-0.15 mm thick, with fewer cellular layers. The junction between The avascular epidermis and richly vascularized dermis the der Ebook Netter''s essential histology (2nd edition): Part 2moepidermal border is usually highly corrugated and has many downward. ridge-like extensions of epidermis, called epidermal, or rete, ridges that projEbook Netter''s essential histology (2nd edition): Part 2
ect between alternating, upward projections of dermis, the dermal papillae. The contour of this border resembles the undersurface of an egg carton and11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo Ebook Netter''s essential histology (2nd edition): Part 2icial papillary layer of loose connective tissue containing type I and m collagen fibers interspersed with elastic fibers, connective tissue cells, and rich network ofcapillaries: and a deeper reticular layer of dense irregular connective tissue consisting of coarse, interlacing bundles of collagen Ebook Netter''s essential histology (2nd edition): Part 2fibers, mostly type I Aside from fibroblasts, other connective tissue cells in the dermis include macrophages, mast cells, adipocytes. plasma cells, aEbook Netter''s essential histology (2nd edition): Part 2
nd lymphocytes.CLINICAL POINT11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5Ultrastructureo11INTEGUMENTARYSYSTEM11.1Overview11.2Histology of Thick and Thin Skin11.3Histology of theEpidermis11.4Ultrastructureofthe Epidermis11.5UltrastructureoGọi ngay
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