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 Actions for skin care and protection 3 Other skin functions 4 Generates hair 5 Types of sweatty glands. 6 Four main functions of the skin. 7 Three main layers of the skin. 8 Structures associated to the skin 9 What is melanin? 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. Proper nutrition 2. Sport (helps circulation) 3. Regular cleaning 4. Sunlight protection (UV rays). Cells called melanocytes 1.Protection against infections 2.Protection against dehydration 3. Body temperature regulation 4. Senses' organ Hair follicle 1. Epidermis 2. Dermis 3. Hipodermis o subcutane layer 1. Substances absorbtion (Ex: some medicines) 2. Excretion (water, electrolytes, toxines) 3. Vitamin D synthesis Pigment that gives color to the skin, hair and eyes. People with darker skin produce a larger amount of melanin. Sebaceus glands, sweat glands, hair and nails.