1. The Integumentary System
Standard: Explain the purpose of the human body’s major organ systems

2. What is the integumentary system?
The natural outer covering of an organism
For humans, this includes the skin, hair, and nails, sweat glands

3. What is the skin? The largest and heaviest organ in the human body
Protects, nourishes, insulates , and cushions the human body
Composed of two primary layers

4. What are the layers that make up skin?
Epidermis (outer/surface layer of skin)
Dermis (contains hair roots, sweat glands)

5. What are the functions of the skin?
Protect the human body (First layer of defense)
Sensory response
Formation of vitamin D
Regulation of body temperature (homeostasis)
Excretion of waste

7. Review Questions for Quiz (Friday)
Complete the following questions with complete sentences or questions/answers:
Page 505, Visualizing Main Ideas
Page 500, #2-3
Page , #1-8, 10-13, 15-18
Total 18 Questions.