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 Generates hair 3 Structures associated to the skin 4 Types of sweatty glands. 5 Four main functions of the skin. 6 Other skin functions 7 Actions for skin care and protection 8 Three main layers of the skin. 9 What is melanin? 1. Proper nutrition 2. Sport (helps circulation) 3. Regular cleaning 4. Sunlight protection (UV rays). 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 Pigment that gives color to the skin, hair and eyes. People with darker skin produce a larger amount of 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.Protection against infections 2.Protection against dehydration 3. Body temperature regulation 4. Senses' organ Sebaceus glands, sweat glands, hair and nails. Hair follicle