INTEGUMENTARY SYSTEM ØSkin thin type thick type ØKeratinized adnexa hair nail ØNonkeratinized adnexa small sweat glands (ecrine) great sweat glands (apocrine) sebaceous glands (holocrine) mammary glands http://classconnection.s3.amazonaws.com/229/flashcards/1229229/png/thin_skin_21363025011184.png Skin (integumentum) Epidermis stratum corneum proprium (stratum lucidum) stratum granulosum stratum spinosum stratum basale Dermis (corium) pars papillaris pars reticularis Hypodermis) Kůže - 18 Epidermis dermis melanocytes melanocytes http://classconnection.s3.amazonaws.com/229/flashcards/1229229/png/thin_skin_21363025011184.png Thin skin Thick skin Occurrence: palma manus, planta pedis http://dentalday.wikispaces.com/file/view/sn7_sweat_glands.jpg/298120738/sn7_sweat_glands.jpg https://dentalday.wikispaces.com/ Skin glands small sweat (ecrine) large sweat(apocrine) sebaceous (holocrine) Gll. sebaceae General structure of glands: Øexcretory portion (ducts) Øsecretory portion - glandular cells - myoepithelial cells Gll. sudoriferae SWEAT GLANDS (gll. sudoriferae) small ecrine eccrine sweat gland SWEAT – H2O, NaCl2, NH3, urea, uric acid, proteins Merocrine secretion animation.gif SWEAT GLANDS (gll. sudoriferae) large apocrine apocrine sweat gland after pubery complet swea –pheromones, fats, steroids; under hormonal influence Apocrine secretion animation.gif Preview Skin from axilla – great sweat glands (apocrine, aromatic) https://classconnection.s3.amazonaws.com/334/flashcards/521334/jpg/hair_follicle1305222795845.jpg Preview Skin from axilla(HE) apocrine sweat gland sebaceous glands Kůže - 25 Preview Sebaceous glands (HES) Kůže - 27 Preview Sebaceous glands (HE) Preview Mamma non lactans (HE) Kůže - 29 Preview Mamma non lactans (HE) Kůže - 31 Preview Mamma lactans (HE) Kůže - 37 Preview Skin with hair (HEŠ) Kůže - 39 Preview Hair – bulbus pili with melanocytes (HE) RODENTS Kůže - 40 Preview Hair – bulbus pili with melanocytes, papilla pili (HES) Hair (eng) – Vlas (cs) – Pilus (lat) 2 1 3 dermal sheath (1) outer epithelial sheath(2) Henle Huxley cuticle of sheath cuticle of hair cortex medulla dermal papilla blood capillaries inner epithelial sheath (3) hair melanocyte Nail (eng) – Nehet (cs) – Unguis (lat) – Onyx (gr) Nail (eng) – Nehet (cs) –Unguis (lat) – Onyx (gr) Longitutudinal section Cross section vallum unguis nail plate vulcus unguis epidermal bed dermal bad bone INTEGUMENTARY SYSTEM Slides: Skin from tip of finger Skin with hair Skin from axilla Nail Mamma non-lactans Mamma lactans Preview Embryology Development of skin and skin adnexa Development of epidermis and corium ectoderm basal intermediate layer periderm layer mesenchyme primitive differentiated dermis dermis differentiated epidermis Development of sweat glands epidermis ectodermal bud ectodermal peg development of lumen in glandular ducts convolution of secretory portion Development of mammary line and gland B, C: primary and secondar ectodermal buds ingrowth mesenchyme Development of hair and sebaceous gland peg bud hair bulb hair follicle hair root sebaceous gl. papilla mesenchyme epidermis