BTEC Health

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 2. A blood vessel that carries blood from the capillaries toward the heart (4)
  2. 4. One of the tubules forming the respiratory system of most insects and many arachnids (7)
  3. 8. A heavy odorless colorless gas formed during respiration and by the decomposition of organic (13)
  4. 9. Gas in the air that we need to breathe (6)
  5. 10. Either of the two main branches of the trachea (8)

Down

  1. 1. The metabolic processes whereby certain organisms obtain energy from organic molecules (11)
  2. 2. A mechanical system in a building that provides fresh air (11)
  3. 3. Any of the minute blood vessels connecting arterioles with venules (9)
  4. 5. A blood vessel that carries blood from the heart to the body (6)
  5. 6. Any of the smallest ___ ducts (10)
  6. 7. The bodily process of inhalation and exhalation (9)
  7. 8. An enclosed volume in the body (plural) (8)