Across
- 2. that stimulates antibody production
- 3. maximum volume of air a person can inhale
- 5. double walled sac containing the heart and the roots of great vessels.
- 8. muscular tissue of the heart
- 10. hollow cavities that reduce the weight of the skull
- 11. master of all glands
- 13. amount of fluid in blood
- 15. too few white blood cells
- 18. protein that is made in response to antigens
- 19. stimulates glands
- 21. too many white blood cells
- 22. secretes hormone for digestion
Down
- 1. clumping of red blood cells
- 3. cavities
- 4. regulation of electrolytes
- 6. air sacs
- 7. in erythrocytes that carry oxygen
- 9. beta cells
- 12. can pass through cell membranes
- 14. fluid portion of blood
- 16. red blood cell deficiency
- 17. of air to the outside of the body
- 20. and maintains milk secretion