BCS0033 - Anatomy and Physiology: The Integumentary SystemOur skin, also called the integument, is an elastic, durable covering protecting our body, and is our largest organ. If the skin of an average-sized adult were spread out flat, it would cover an area of approximately 2 square meters and weigh about 4.5 kilograms, the size and weight of a medium-sized rug.
Skin tissue grows faster than any other organ tissue and is constantly renewing itself by growing new skin cells and sloughing off old ones. This includes our hair, finger and toenails, which are composed of the same type of cells as our skin and, along with our skin and glands, make up the integumentary system. | 
