What are the functions of skin?(7)

1. Aids in excretion of waste products 2. Has nerve endings that provide the brain with sensory information related to pain, heat and cold, touch, pressure and vibration 3. Insulates body and protects from trauma through subcutaneous layer of fat 4. Prevents excessive water loss 5. Protects against pathogenic organisms and foreign substances(Provides a natural barrier against infection 6. Regulates temperature 7. Synthesizes vitamin D