1. Cell
the basic unit of life

2. similar cells with a specific function
tissue
similar cells with a specific function

3. organ
a part of your body that performs a specific function: like your brain, lungs, or skin

4. Ten major systems that work together as one unit
organ system
Ten major systems that work together as one unit

5. composed of only ONE cell
unicellular
composed of only ONE cell

6. composed of several or many cell
multicellular
composed of several or many cell

7. transport system
a system of tubes with a pump and valves to ensure one way blood flow. We need a transport system to deliver oxygen, nutrients and other substances to all our body cells, and take away waste products from them.

8. Circulatory / Cardiovascular System
Supplies the body with blood, nutrients, and O2 through a systems of vessels; works with many systems

9. heart
Function: Pumps blood through the body over and over again 
Systems: Circulatory

10. Blood vessels
a tubular structure carrying blood through the tissues and organs; a vein, artery, or capillary

11. Respiratory System
Breathing- Movement of chest to bring fresh air in and "waste" air out. Supplies O2 and removes CO2

12. Function: Letting of the air flow into the lungs System: Respiratory
trachea
Function: Letting of the air flow into the lungs
System: Respiratory

13. lungs
Function: The primary function of the lungs is respiration. They enable you to breathe and bring oxygen into the body and carry out carbon dioxide.
System: Respiratory, Excretory

14. Skeletal System
Gives shape and support to the body; protects organs; produces red blood cells

15. bones
any of the pieces of hard, whitish tissue making up the skeleton in humans and other vertebrates

16. Muscular System
Makes all movement possible from moving skeletal muscles (walking, running, etc) to digestion (smooth muscle)

17. muscles
a band or bundle of fibrous tissue in a human or animal body that has the ability to contract, producing movement in or maintaining the position of parts of the body

18. Digestive System
Breaks down food into small molecules so that they can be absorbed and moved into the blood. Removes solid wastes. 2 Types- mechanical & chemical

19. the opening through which food is taken in and vocalizations emerge
mouth
the opening through which food is taken in and vocalizations emerge

20. esophagus
When a person swallows, the muscular walls of the esophagus contract to push food down into the stomach

21. stomach
the internal organ in which the major part of the digestion of food occur

22. Nervous System
Allows the body to sense and respond to its environment; helps maintain homeostasis

23. portion of the digestive tract extending from the stomach to the anus
intestines
portion of the digestive tract extending from the stomach to the anus