Across
- 3. breakdown of food into nutrients
- 6. insensitivity to pain induced for surgery
- 8. system relating to the heart and blood vessels
- 9. study of the causes and effects of disease
- 10. fundamental unit of the brain
Down
- 1. chemical messengers in the body
- 2. framework of the body
- 4. system that protects against disease
- 5. study of heredity
- 7. system responsible for gas exchange