What is the primary function of the integumentary system?

The primary function of the integumentary system is to protect the body from external damage. This system comprises the skin, hair, nails, and various glands, all of which work together to serve protective roles. The skin acts as a barrier that guards internal tissues and organs from potential threats such as pathogens, harmful chemicals, and physical abrasions. It also helps prevent dehydration by reducing water loss from the body.

Additionally, the integumentary system plays a crucial role in sensation, helping the body detect pressure, temperature, and pain, further contributing to its protective functions. While temperature regulation is an essential aspect of the integumentary system, it primarily supports the overall protective role. Therefore, the focus on protection underscores the integumentary system's pivotal role in maintaining body integrity and homeostasis.