Across
- 4. What is a sudden involuntary movement of the muscles in response to a stimulus?
- 6. What carries blood away from the heart?
- 8. What chemicals do the Endocrine system produce?
- 9. What is the sensory tissue that lines the back of the eye?
- 11. What disease causes the weakening of the bones?
- 13. Where is your esophagus located?
- 15. Where does the optic nerve transmit the eye’s electrical signals?
Down
- 1. Which canal in the ear is coiled like a snail shell?
- 2. Where are the eggs stored in the female reproductive system?
- 3. What shape is the cornea?
- 5. What organ is responsible for the intake of air into the body?
- 7. What converts stimuli into electronic signals?
- 10. What is the most important part of the central nervous system?
- 12. What is the colored part of the eye called?
- 14. Chemoreceptor tell what to the brain?