Relier Pairs 2.32 Concepts of the Integumentary System Version en ligne Concepts of the Integumentary System par Jorge Arizpe 1 Other skin functions 2 Types of sweatty glands. 3 Actions for skin care and protection 4 Four main functions of the skin. 5 They produce melanin 6 What is melanin? 7 Structures associated to the skin 8 Generates hair 9 Three main layers of the skin. 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. Epidermis 2. Dermis 3. Hipodermis o subcutane layer 1. Substances absorbtion (Ex: some medicines) 2. Excretion (water, electrolytes, toxines) 3. Vitamin D synthesis Cells called melanocytes Sebaceus glands, sweat glands, hair and nails. Pigment that gives color to the skin, hair and eyes. People with darker skin produce a larger amount of melanin. 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. Senses' organ