What is a major component of the integumentary system?

The integumentary system is primarily composed of the skin, which serves as a protective barrier for the body. This system includes not only the skin itself but also other structures such as hair, nails, and various glands. The skin plays critical roles in regulating body temperature, protecting against pathogens, sensing environmental stimuli, and preventing dehydration. It is the largest organ of the body and its health is essential for overall well-being.

In comparison, muscles, bones, and nerves belong to different systems. Muscles are part of the muscular system, contributing to movement. Bones are components of the skeletal system, providing structure and support. Nerves are part of the nervous system, which conveys signals throughout the body. While these elements are essential for body function, they do not constitute a component of the integumentary system.