Relier Pairs 2.32 Concepts of the Integumentary System Version en ligne Concepts of the Integumentary System par Jorge Arizpe 1 They produce melanin 2 Types of sweatty glands. 3 Structures associated to the skin 4 Actions for skin care and protection 5 Other skin functions 6 Three main layers of the skin. 7 What is melanin? 8 Generates hair 9 Four main functions of the skin. Sebaceus glands, sweat glands, hair and nails. 1. Epidermis 2. Dermis 3. Hipodermis o subcutane layer Cells called melanocytes 1. Proper nutrition 2. Sport (helps circulation) 3. Regular cleaning 4. Sunlight protection (UV rays). Pigment that gives color to the skin, hair and eyes. People with darker skin produce a larger amount of melanin. Hair follicle 1.Eccrine: Produces diluted sweat. Activated by temperature 2.Apocryphal: Produces a type of sweat with more protein. Concentrated in regions like armits among others. Activated by stress or nervousness. 1. Substances absorbtion (Ex: some medicines) 2. Excretion (water, electrolytes, toxines) 3. Vitamin D synthesis 1.Protection against infections 2.Protection against dehydration 3. Body temperature regulation 4. Senses' organ
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