Relacionar Columnas 2.32 Concepts of the Integumentary System Versión en línea Concepts of the Integumentary System por Jorge Arizpe 1 Other skin functions 2 Structures associated to the skin 3 Four main functions of the skin. 4 Three main layers of the skin. 5 What is melanin? 6 Actions for skin care and protection 7 Generates hair 8 Types of sweatty glands. 9 They produce melanin 1. Substances absorbtion (Ex: some medicines) 2. Excretion (water, electrolytes, toxines) 3. Vitamin D synthesis Hair follicle 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. Epidermis 2. Dermis 3. Hipodermis o subcutane layer Sebaceus glands, sweat glands, hair and nails. Cells called melanocytes 1.Protection against infections 2.Protection against dehydration 3. Body temperature regulation 4. Senses' organ 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.