Which components comprise the integumentary structure?

Which components comprise the integumentary structure?

• A. Skin, mucous membranes, hair, and nail
• B. Bones, cartilage, ligaments, tendons
• C. Brain and spinal cord
• D. Muscles and tendons

Answer: (A)

The integumentary system includes the skin and its external coverings plus related structures that protect the body and interact with the environment. Skin itself is the main organ, and its usual accessory parts are hair and nails. Mucous membranes line many body surfaces that open to the outside and contribute to protection, moisture, and defense, so they’re included as part of this system. Together, these elements form the integumentary structure. The other groupings belong to other body systems: bones, cartilage, ligaments, and tendons are part of the skeletal and connective tissue framework; the brain and spinal cord are part of the nervous system; and muscles and tendons are part of the muscular system.

The integumentary system includes the skin and its external coverings plus related structures that protect the body and interact with the environment. Skin itself is the main organ, and its usual accessory parts are hair and nails. Mucous membranes line many body surfaces that open to the outside and contribute to protection, moisture, and defense, so they’re included as part of this system. Together, these elements form the integumentary structure.

The other groupings belong to other body systems: bones, cartilage, ligaments, and tendons are part of the skeletal and connective tissue framework; the brain and spinal cord are part of the nervous system; and muscles and tendons are part of the muscular system.