Functions of theskin integumentarysystem primeexample of relationshipbetween structureandfunction ftp.wmeonstffhs heatrelease 9eHH.fr gYf9tif9 8484 91 9 5 ibhfa protection chemical physical mechanicalbarrier sensation receptors in skin defect touch temp excretion of wastes pain Hammatesia's iambesfabff.hn shifted.is epidermis uppermost layerof skin stratifiedsquamouskeratinized epithelia of distinct cells depending on location Epidermal cells Keratinocytes produces keratin protein protects underlying waterproof seal melanocyte produces pigment granules tissue forms Langerhans cell immune functions Merkelcell touchsensation apid.irfathmaYeforneufhWyfffotlaners overlappingdeadcells of flat dead keratinocytes protective function stratumlucidum onlypresent inthick skin palmstosoles 46layersofclear dead keratinocytes stratumgranulosum 3 5 layersof dying keratinocytes Keratohyalin granules abundant stratum spinosum 810layersofactive cells together Keratinfilament extensionsbindcells together stratum basale deepest singlerowof cuboidal keratinocytes other cells Der.fi est a mostabundant region contains vascularandnervous supply muscle tissue and accessory structures 2 sub layers 1 Papillary layer underliesepidermis areiarconntissue pronouncedpapillae in thickskin epidermalridges 2 Ret 19h ffpeftffufsef.gggulartissue some elastic fibers 9 at skincolor normalpigmentation melaninprotects keratinocytes from UV damage Others eumelanin carotene hemoglobin Color as a diagnostictool erythema pallor cyanosis abseong rash of cigar g hagfish Accessory structures hair dead keratinized epidermal cells functions protection thermoregulation sensinglighttouch Shaft abovesurface Root penetratesdermis medulla cortex cuticle Follicle rn Epithelial Mfffernal dermal root sheaths Accessory structures nails hard dead keratinizedepidermal cells coverdorsalsurfaces ofterminal portions ofdigits functions protection grasping manipulating objects Structures freeedge body lunula eponychium root matrix Accessory structures glands multicellular sudoriferous sweat glands simple coite'dtubularglands I e9YniehiahY ffmmhnafete gnhr.fi'd Hanten Sebaceous glands secrete sebumcoil openintohairfollicles moistens hair waterproofs softens skin inhibits bacteria wound healing toskin's structural integrity any disruption function replacenormalstructure tissue goal Scars fibrousconnectivetissuesmayform inkdkkongthdnffkka.tk Harm he B stroyproteins in theskin s heal faster w lessscarring destroy barrier between internal 1stdegree onlyepidermis affected external environments 2nddegree epidermis mostofdermis affected 3rddegree damageextends to hypodermis skin cancer exposuretoUVdamages DNA in melanocytes stratum basale or spinosum cells risk w fairskin genetic predisposition increasingage follow ABCDE warning signs for early treatment sunexposure

Functions of the Skin

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