Unit One Vocabulary Review

5. Large muscle located in the circulatory system
6. A collection of similar tissues joined together into a structure that performs specialized functions
8. Which system allows us to breath and speak?
11. A self-contained system within a larger system
14. A category of organisms made up of more than one cell and of different types of cells
15. A group of interacting, interrelated, or interdependent elements forming a complex whole
16. Which blood cells help fight against disease?
17. Which blood cells transport oxygen rich blood to the body?
20. Having characteristics that allow specific functions to be performed
22. Branch like structure that leads to alveoli

1. What something does
2. Carry blood away from the heart
3. Self-contained living thing
4. Extremely small, thin blood vessel that allows oxygen to pass from the blood into the tissues of the body
7. Where the exchange of oxygen and carbon dioxide actually takes place
9. Air filled organs located in the respiratory system
10. The basic structural and functional unit of living organisms
12. Organization of interrelated elements in a system
13. A mass of similar cells that perform a specialized function
17. Exchange of oxygen and carbon dioxide
18. Divides into left and right air tubes called bronchi
19. Return blood to the heart
21. What system is made up of blood vessels that carry blood away from and towards the heart, also known as the cardiovascular system?
23. Passes into the alveoli to be exhaled