Modern age crossword puzzle

123456789
Across
  1. 3. Galen’s term for the body’s vital warmth
  2. 6. According to Galen, this system is responsible for life-giving energy.
  3. 7. Galen’s understanding of this system included the heart and arteries.
  4. 8. Galen believed this organ was responsible for sensation and thought.
  5. 9. The practice of cutting into living animals to study their anatomy, used by Galen.
Down
  1. 1. Galen’s theory included this bodily fluid, believed to cause fever when in excess.
  2. 2. This organ, according to Galen, was responsible for nutrition and growth.
  3. 4. Galen’s anatomical studies were often performed on these animals.
  4. 5. Galen’s work was based on the theory of four ____.