Your Skin Part III

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Your Skin Part III

• The Weird and Miscellaneous

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Functions of the Integument

• Chemical Protection
• Skin AKA the acidic mantle
• Secretions of integument acidic
• Retards bacterial proliferation
• Sebum has bactericidal properties
• Melanin chemical defense against light
• Physical Protection
• Chief player keratin
• Keratin bi-products
• Biological Barrier
• Langerhans, mast cells and macrophages
• Body Temperature Regulation
• Negative homeostatic feedback
• Sweating vs. constriction and invagination
  (goosebumps)

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Functions of the Integument

• Chief tactile sensation gathering organ
• Huge importance for infant brain development and
  wiring
• Metabolic Processor
• Vitamin D generation in response to sunlight
• Calcium uptake in digestive tract ceases without
  vitamin D
• Blood Reservoir
• 5 of total blood volume channeled to dermis
• Vascular constriction to dermis
• Reroute blood to more critical areas or functions
• Excretion

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Pigmentation of the Skin

• Melanin
• Epidermal pigment
• Hair follicle
• Carotene
• Yellow to orange pigment in high concentration of
  some plants
• Accumulates in Stratum Corneum of thick skin and
  in subcutaneous layer
• Pigmentation of oriental races
• Not carotene related
• Variation of melanin

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Pigmentation of the Skin

• Hemoglobin
• Oxygen carrying molecule of blood stream
• Reddish hue of Caucasian skin oxygenated blood
  circulation of integument
• Little melanin in Caucasian skin
• Bluish hue of Caucasian skin cardiovascular
  abnormality
• Also can be caused by genetic abnormality
• The Blue People of Troublesome Creek

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Integument Interacts with Emotional State of Mind
and Environmental Factors

• Erythema blushing
• Embarrassment and hypertension
• Other cause include fever, inflammation or
  allergy
• Pallor or Blanching pale
• Emotional stresses like fear, anger, jealousy,
  anticipation
• Other cause include low blood pressure and anemia
• Jaundice yellowing
• Abnormality of liver and/or bile production
• Bronzing
• Metallic appearance to skin
• Disease likely to follow
• Hematomas bruises
• Highly susceptible individuals
• Vitamin C Defficient or hemophellia

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Glands of Integument

• Eccrine Glands
• Appocrine Glands
• Sebacous Glands
• Ceruminous Glands
• Secrete Cerumen
• Earwax
• Mammary Glands

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Classification of Burns

• First Degree
• Superficial Burn
• Only Epidermis is compromised
• Second Degree Burn
• Intermediate Burn
• Epidermis is entirely compromised
• Wound continues into dermis
• Third Degree Burn
• Full Thickness Burn
• Epidermis and Dermis are entirely compromised
• Wound continues into subcutaneous layer or deeper
  still