CHAPTER 2.2: KNOWING HOW YOUR BODY WORKS

12345678910
Across
  1. 3. body system of organs that obtain vitally important oxygen from the outside world
  2. 4. body system formed by all the structures that move blood through the body
  3. 6. blood vessels that carry oxygen-poor blood
  4. 9. exchange of oxygen and carbon dioxide between the body and the air around it
  5. 10. hollow, muscular organ located in the center of the chest
Down
  1. 1. small arteries that deliver oxygen and nutrients to cells and pick up cell's waste
  2. 2. liquid part of blood
  3. 5. blood vessels that carry oxygen-rich blood
  4. 7. two air passages
  5. 8. sheet of muscle beneath the lungs and above the abdomen