What is one of the primary functions of the integumentary system?

The integumentary system, which includes the skin, hair, nails, and associated glands, plays a crucial role in protecting the body. One of its primary functions is to serve as a barrier against infection and injury. The skin acts as a physical shield that prevents pathogens, such as bacteria and viruses, from entering the body. It also protects underlying tissues and organs from physical damage and harmful substances.

Additionally, the skin helps to prevent dehydration by minimizing water loss and provides a sensory interface that allows the body to react to environmental changes. Through these protective mechanisms, the integumentary system is vital for maintaining overall health and homeostasis.