1.structure and function of the skin rp
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Transcript of 1.structure and function of the skin rp
Structure and Function of the Structure and Function of the SkinSkin
Dr Robert PaverDr Robert PaverDermatologistDermatologistMedical DirectorMedical Director
Skin and Cancer Foundation WestmeadSkin and Cancer Foundation Westmead
Structure and Function of the SkinStructure and Function of the Skin
Structure and Function of the SkinStructure and Function of the Skin
Structure and Function of the SkinStructure and Function of the Skin
Structure and Function of the SkinStructure and Function of the Skin
Structure and Function of the SkinStructure and Function of the Skin
Stratum Corneum –Stratum Corneum –
Keratin is produced by Keratin is produced by the epidermal cells as the epidermal cells as they move upwards they move upwards from the basal layerfrom the basal layer
Protection, fluid Protection, fluid conservation, UVconservation, UV
Structure and Function of the SkinStructure and Function of the Skin
Epidermis – Epidermis – keratinocytes produce keratinocytes produce the keratin which the keratin which forms the stratum forms the stratum corneumcorneum
protection, replicationprotection, replication
Structure and Function of the SkinStructure and Function of the Skin
Dermis- papillary Dermis- papillary dermis is a thin layer of dermis is a thin layer of loose collagen beneath loose collagen beneath the epidermal basal the epidermal basal layer.layer.
Reticular dermis is thick Reticular dermis is thick strong collagenstrong collagen
strength and support strength and support structurestructure
Structure and Function of the SkinStructure and Function of the Skin
Subcutaneous fat – cushioning and Subcutaneous fat – cushioning and thermoregulationthermoregulation
Appendages:Appendages:
Hair- touch, protection, Hair- touch, protection, cosmetic, cosmetic, thermoregulationthermoregulation
Sebaceous glands- moisturizing Sebaceous glands- moisturizing greasegrease
Eccrine glands- Sweat produced Eccrine glands- Sweat produced for thermoregulationfor thermoregulation
Apocrine glands- uncertain ? Apocrine glands- uncertain ? vestigial sexualvestigial sexual
Structure and Function of the SkinStructure and Function of the Skin
Specialized cells: Specialized cells:
melanocytes - UV protectionmelanocytes - UV protection
langerhans cells –immune surveillancelangerhans cells –immune surveillance
merkel cells, meiseners corpuscles, merkel cells, meiseners corpuscles, pacinian pacinian corpuscles, nerve endings – corpuscles, nerve endings – sensory inputsensory input
Blood vessels –nourishmentBlood vessels –nourishment
Lymphatics- fluid drainage Lymphatics- fluid drainage
ReferencesReferencesAustralasian College of Dermatologists Australasian College of Dermatologists Online Student Teaching ModulesOnline Student Teaching Modules
Images and Explanations of all skin diseasesImages and Explanations of all skin diseases
www.dermnetnz.orgwww.dermnetnz.org
Lecture Notes on Dermatology (Brown and Lecture Notes on Dermatology (Brown and Burns) Blackwell Publishing Burns) Blackwell Publishing
Skin Disease Diagnosis and TreatmentSkin Disease Diagnosis and Treatment
(Habif) Elsevier Mosby Publishing(Habif) Elsevier Mosby Publishing
The EndThe End