Question: what are three functions of the skin or integument
Answer: Protect the body 's internal living tissues and organs Protect against invasion by infectious organisms Protect the body from dehydration Protect the body against abrupt changes in temperature , maintain homeostasis Help excrete waste materials through perspiration Act as a receptor for touch , pressure , pain , heat , and cold ( see Somatosensory system ) Protect the body against sunburns by secreting melanin Generate vitamin D through exposure to ultraviolet light Store water , fat , glucose , vitamin D Maintenance of the body form Formation of new cells from stratum germanium to repair minor injuries Protect from UV rays .