What comprises the integumentary system?

The integumentary system is primarily responsible for protecting the body and maintaining its integrity, as well as regulating temperature and providing sensory information. The key components of this system include skin, hair, mucous membranes, and nails. Skin serves as the body's outer barrier against pathogens and environmental hazards, while hair contributes to insulation and protection. Mucous membranes line various body cavities and organs, providing additional protection and lubrication. Nails protect the tips of fingers and toes and help in a variety of functions, including gripping. Each of these components plays a crucial role in the overall function and health of the integumentary system, making this answer the most accurate representation of what comprises the system. Other choices relate to different body systems, highlighting their distinctive functions, but do not pertain to the integumentary system.