Anat & Phys Mod 2.pptx - Integumentary System Structure &...

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Integumentary SystemStructure & FunctionEpidermisDermisIntegumentary OrgansApplications
Structure & FunctionAnatomy and Physiology I
Objectives11/06/20213Label and explain the functions of the integumentarysystemLabel the structures of the integumentary system
Integument:OverviewThe skin is the largest organ in the body by weightRoughly 15% of overall body weightIntegument refers to outer covering- for humans it isthe skinIf you included the accessory organs, referred to asthe integumentary systemHairFinger nailsSensory receptorsGlands11/06/20214
Integument: OverviewEpidermisEpithelial tissueDermisConnective tissueNervous tissueMuscular tissueHypodermisTechnically not part of integumentAccessory OrgansHair, nails, sensory receptors, and various cutaneousglands11/06/20215
Integument Anatomy11/06/20216
Integument:FunctionsMaintains homeostasisResistance to trauma, infection and other barriersRegulates body temperatureRetards water lossHouses sensory receptorsHelps in the synthesis vitamin DExcretes small quantities of wastesNonverbal communication11/06/20217
EpidermisAnatomy and Physiology I
Objectives11/06/20219Compare and contrast the characteristics of theepidermis and dermisExplain how skin color can be influencedDefine the accessory organs of the skin and theircharacteristics
Epidermis: OverviewOuter most layer of skinStratified keratinized squamous epitheliumLacks blood vessels and nervesVery thin layerBottom most layer is connected to basementmembrane11/06/202110
Epidermis: CellsStem (Basal) cellsUndifferentiated cells in deepest layersKeratinocytesMajority of skin cellsSynthesis keratinMelanocytesSynthesize pigment melanin that protects against UV lightTactile (Merkel) cells

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Term
Fall
Professor
NoProfessor
Tags
Skin anatomy, skin lesion, accessory organs

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