Relier Pairs 2.32 Concepts of the Integumentary System (D)Version en ligne Concepts of the Integumentary System par Emir Barajas 1 Four main functions of the skin. 2 Other skin functions 3 Actions for skin care and protection 4 They produce melanin 5 What is melanin? 6 Structures associated to the skin 7 Generates hair 8 Three main layers of the skin. 1. Epidermis 2. Dermis 3. Hipodermis o subcutane layer 1. Substances absorbtion (Ex: some medicines) 2. Excretion (water, electrolytes, toxines) 3. Vitamin D synthesis 1. Proper nutrition 2. Sport (helps circulation) 3. Regular cleaning 4. Sunlight protection (UV rays). 1.Protection against infections 2.Protection against dehydration 3. Body temperature regulation 4. Capture sensations Hair follicle Pigment that gives color to the skin, hair and eyes. People with darker skin produce a larger amount of melanin. Cells called melanocytes Sebaceus glands, sweat glands, hair and nails.
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