Matching Pairs 2.32 Concepts of the Integumentary System (D)Online version Concepts of the Integumentary System by Emir Barajas 1 Three main layers of the skin. 2 What is melanin? 3 Generates hair 4 Other skin functions 5 Structures associated to the skin 6 Four main functions of the skin. 7 Actions for skin care and protection 8 They produce melanin 1.Protection against infections 2.Protection against dehydration 3. Body temperature regulation 4. Capture sensations Sebaceus glands, sweat glands, hair and nails. 1. Epidermis 2. Dermis 3. Hipodermis o subcutane layer 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). Pigment that gives color to the skin, hair and eyes. People with darker skin produce a larger amount of melanin. Hair follicle Cells called melanocytes