TEAS Prep Notes - Integumentary System

integumentary systemFunctions(. sense of louchS. vitamin D Synthesis-Bone(carcium health requires vit D for absorption)(greatest in fingers, ups,4 genitalia)mood (w/out sun)seasonal affective disorder-immune Health2 Protection(SAD). may occur ininverse relationship w/ cancersFrom trauma & pathogenssusceptibleInverse relationship w/ allergiesinverse relationship w/ authormany3 Temperature Regulation- Heart cardiovascular HealthsweatDialating capillaries inskin to cool you OFF,PethorCholesterolJ-WT.Dreleases healoccholesterd in blood isconverted to vit. byconstrict capillaries in skinto keep care warm also toUV lightdivert blood to major organneeded in a crisis4. Excrete stress a toxins?Sweat glands are concentrated most in the axillary and area, forehead,-Tears -stress [cortisol]palms, soles & groin!expels seartiersdirectly on theskinExcretes water minerals2 Types of sweat Glancisfrom the bodyA Heal generated1.Eccrine-Found connected to hair follatealloverthebodyby arrector pillimusclesErocrineHair Nails haveGrands2. Apocrine Axillary groin.not activated by high temp LEpidermissudoriferous glandmasductsactive @ puberty,(sweat)secretes during unxiety or stress.stratified squarncusEpitheliumkerain producing cells.(Deep to superficial)separeous granding *oil * mostig made vessels, at CT censoryHas body odorcontains (nerve blood endings) hair collicle,Stratum BasaleDermisreceptors sweat isebaceous glunds, & collagen fibersundergo mitosis to1 Papillary Region2Reticular Regionproduce more skin cells-melanocytes - Produce pigmentwrinkles form fingerprints in this tissue rgrip (collagen resist smoothness tearing)Irregular Fibrous CTFLOTS or LITTLEHypodemmis (suboutaneous)color of pigmentProtects against or radiationanemble-Below the dermis -Highly vascularstratum spinosum-Adipose the CT skin to muscleThickest layer keratinocytes.-immune dendritic cells, sensory cellsarrector Binds pilus "goose bump",generate heat to warm you up,stratum Grandosummuscle controlled by sympathetic NS.Granular layerDoes not neuron controls glands of the skincontainblood vessels (avascular)stratum wadammade completely w) epithelial cellscolorless protein eleidin*regulates the amount of water lostto body's surroundingsThermoregulationStratum corneumDead keratinocynesconverts to KeratinVasodialation (cools Body)vaso constriction (Heats BodyTypes of Epithelium-increases blood vessel diameter- Decreases blood vessel diametersimple savamous In the lungs- Takes heat out from the body- Generates shiveringtranfied savamous - skin d throat- sweat glands stimulated- Arrector Pilli muscles causesimple columner - pigestive System - intestines- Hair follides relax -radiationgoosebumpssimple cubordal - in glands & kidneys- endothermic: heat is absorbed- contentic heat vs released First degree Burn= Damages only Epidermissecond degree Burn= Damages Epidemis and part of the permisThird degree Burn= Damages Epidermis & DemisForth degree Bum= Damages all 3 layers of the skin as well as bone, muscle, etc memembranes(normal frora abound)3 mucous membranesKeratin sweat (waterproof)-Respiratory Tract011-arreator pili/hair folliclesFILLED us normal Florafortconjuctiva1IScutaneous membrane (skin).notsterile2Serous membraneslippery serous fluidPleuraPericardiumPertitoneum"around interlines4synovial membranes-moveable jointsReduce Friction- cushion jointRneumatiod ArtheritisAutoimmune DiseaseWBCs attack their ownsynovialsynovial membranesfordParietalParietalpentoneumpericardiumWvisceralmmmvisceralpericardiumperitoneumserous fluid btanlayers