1. Quick Write List three organ systems and describe their function.
How does their function help maintain homeostasis?

2. Body Systems

3. 11 Organ Systems Nervous Integumentary Skeletal Muscular Circulatory
System System System System System

4. Top
(from left to right)
Respiratory System
Digestive System
Excretory System
Bottom
(from left to right)
Endocrine System
Reproductive System
Immune System

5. Nervous System Central Nervous System (CNS)
Brain
Spinal Cord
Peripheral Nervous System (PNS)
All other nerves
Functions?
Recognizes and responds to stimulus

6. Integumentary System Skin, hair, nails, etc. Functions?
Protective barrier
Environment
Sunlight

7. Skeletal System Bones, cartilage, etc. Functions? Structure Support
Protection
Movement
Makes blood and Stores fat

8. Muscular System Muscles Functions? Movement Circulates Blood
Helps with Digestion

9. Circulatory System Heart, blood vessels Functions?
Supplies cells with oxygen and nutrients
Removes waste(CO2)

10. Respiratory System Nose, trachea, lungs, etc. Functions?
Provides oxygen
Removes carbon dioxide

11. Digestive System Mouth, stomach, intestines, etc. Functions?
Accessory Organs
Liver, Pancreas, Gall Bladder
Functions?
Converts food into nutrients the cells can use
Eliminates waste

12. Excretory System Kidneys, bladder, urethra, etc. Functions?
Eliminates waste
Maintains Blood Pressure

13. Endocrine System Pituitary gland, adrenals, pancreas, etc. Functions?
Growth
Development
Metabolism

14. Reproductive System Male Female Functions? Produce reproductive cells
Urethra, testes, etc.
Female
Ovary, uterus, etc.
Functions?
Produce reproductive cells
Nurture and protect developing embryo (females only)

15. Immune System White blood cells, lymph nodes, etc. Functions?
Protect from infection
Helps balance fluids