B9

123456789101112131415
Across
  1. 2. Largest artery in the body
  2. 3. Brain region maintaining homeostasis
  3. 4. Force of blood against vessel walls
  4. 7. Nerve connected to the spinal cord
  5. 12. Upper chamber of the heart
  6. 13. Nervous system controlling involuntary actions
  7. 15. Lower chamber of the heart
Down
  1. 1. Division promoting rest and digestion
  2. 5. Nerves outside the brain and spinal cord
  3. 6. Division responsible for fight-or-flight responses
  4. 8. Endocrine gland controlled by the hypothalamus
  5. 9. Brain region controlling vital functions
  6. 10. Vessel carrying blood to the lungs
  7. 11. Rhythmic expansion of arteries
  8. 14. Brain and spinal cord together