The Human Body

123456789101112131415
Across
  1. 2. Carry oxygen poor blood back to the heart
  2. 3. The "trap door"
  3. 5. The functions of a body system
  4. 7. Long tube leading to your bronchial tubes
  5. 9. Tiny sacs at the end of the bronchioles and are surrounded with capillaries
  6. 12. The structure of the human body
  7. 14. Connects arteries to veins
  8. 15. Striped or lined
Down
  1. 1. Includes breathing and cellular respiration
  2. 4. This system transports nutrients throughout the body
  3. 6. Near the end of your digestive tract
  4. 8. Pigment that causes brown hues in skin
  5. 10. This type of muscle makes up the heart
  6. 11. This organ contains hydrochloric acid to break down food
  7. 13. Carry oxygen rich blood away from the heart