Which system includes the skin as its organ?

Which system includes the skin as its organ?

• A. Circulatory
• B. Endocrine
• C. Integumentary
• D. Digestive

Answer: (C)

Identifying the system that has the skin as its organ. The integumentary system centers on the skin, which is its defining organ, and also includes hair, nails, and associated glands. This system provides the body's first line of defense, helps regulate temperature, offers sensory information, and aids in vitamin D synthesis. Because the skin is the primary organ of this system, it belongs to the integumentary system rather than the circulatory, endocrine, or digestive systems (which are defined by the heart and vessels, hormone-secreting glands, and the gastrointestinal tract, respectively). So, the skin is best understood as part of the integumentary system.

Identifying the system that has the skin as its organ. The integumentary system centers on the skin, which is its defining organ, and also includes hair, nails, and associated glands. This system provides the body's first line of defense, helps regulate temperature, offers sensory information, and aids in vitamin D synthesis. Because the skin is the primary organ of this system, it belongs to the integumentary system rather than the circulatory, endocrine, or digestive systems (which are defined by the heart and vessels, hormone-secreting glands, and the gastrointestinal tract, respectively). So, the skin is best understood as part of the integumentary system.