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 Actions for skin care and protection 3 What is melanin? 4 Structures associated to the skin 5 Other skin functions 6 Three main layers of the skin. 7 They produce melanin 8 Generates hair Sebaceus glands, sweat glands, hair and nails. 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 Cells called melanocytes 1. Epidermis 2. Dermis 3. Hipodermis o subcutane layer Hair follicle Pigment that gives color to the skin, hair and eyes. People with darker skin produce a larger amount of melanin.
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