Which components make up the integumentary system?

The integumentary system is primarily composed of the skin, hair, nails, and associated glands. This system serves several key functions, including protection against environmental hazards, regulation of body temperature, and sensory perception.

Skin, the largest organ of the body, acts as a barrier to pathogens and helps prevent dehydration. Hair provides insulation and has protective roles, while nails enhance the sensitivity of the fingertips and protect the tips of the fingers and toes. These components work together to maintain the integrity of the body and facilitate various functions necessary for survival and wellbeing.

In contrast, the other options include components that belong to different body systems. Muscles, ligaments, and tendons are part of the muscular and skeletal systems, while the heart and blood vessels are integral to the cardiovascular system. Digestive organs are part of the digestive system. Understanding the distinct roles and components of each body system helps clarify the anatomy and physiology involved in medical aesthetics and related fields.