Answer:
1. skin
2. hair
3. nails
- Provides a protective barrier against mechanical, thermal, and physical injury and hazardous substances.
- Prevents loss of moisture.
- Reduces harmful effects of UV radiation.
- Acts as a sensory organ (touch, detects temperature).
- Helps regulate temperature.
- An immune organ to detect infections etc.
Explanation:
1. The integumentary system is an organ system consisting of the skin, hair, nails, and exocrine glands.
2. The skin performs six primary functions which include, protection, absorption, excretion, secretion, regulation, and sensation. The skin functions as our first line of defense against toxins, radiation, and harmful pollutants.
