| Term 
 
        | How thick is the THICK skin of the epidermis? |  | Definition 
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        | Term 
 
        | How thick is the THIN skin of the epidermis? |  | Definition 
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        | Term 
 
        | What are the 5 functions of the skin? |  | Definition 
 
        | 1. Resistance to infection and trauma 2. Water retention
 3. Vitamin D synthesis (sunlight)
 4. Thermoregulation
 5. Non-verbal communications (facial expression)
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        | Term 
 
        | What are the 5 layers of the epidermis? |  | Definition 
 
        | 1. Stratum basale (not an active layer) 2. Stratum spinosum (active/ not much)
 3. stratum granulosum
 4. Stratum lucidum (only in thick skin/ contains special proteins to provide elasticity)
 5. Stratum corneum (full of karotin)
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        | Term 
 
        | In which layer does the blood vessel start? |  | Definition 
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        | Term 
 
        | What are the 2 characteristics of the Hypodermis/Subcutaneous layer? |  | Definition 
 
        | 1. Superficial fascial layer 2. Subcutaneous fat
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        | Term 
 
        | What are the 2 forms of melanin? |  | Definition 
 
        | 1. Eumelanin 2. Pheomelanin
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