Circulatory And Respiratory Systems

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. Red liquid pumped around the body by the heart (5)
  2. 4. A mechanical device in a camera that controls size of aperture of the lens (9)
  3. 7. A hemoprotein composed of globin and heme that gives red blood cells their characteristic color (10)
  4. 9. Any of the minute blood vessels connecting arterioles with venules (plural) (11)
  5. 11. One of the tubules forming the respiratory system of most insects and many arachnids (7)
  6. 13. The metabolic processes whereby certain organisms obtain energy from organic molecules (11)
  7. 15. A blood vessel that carries blood from the heart to the body (plural) (8)
  8. 16. A fourth state of matter distinct from solid or liquid or gas and present in stars and fusion (6)

Down

  1. 1. A thin coagulable fluid containing white blood cells and chyle (5)
  2. 2. Present at birth but not necessarily hereditary (10)
  3. 5. Malignant neoplasm of blood-forming tissues (8)
  4. 6. Tiny bits of protoplasm found in vertebrate blood (plural) (9)
  5. 8. A cartilaginous structure at the top of the trachea (6)
  6. 10. An agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but (plural) (11)
  7. 12. Respiratory disorder characterized by wheezing (6)
  8. 14. A deficiency of red blood cells (6)