BIOLOGY TEST

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Across
  1. 3. fluid that fills the spaces between the cells
  2. 5. gland located in the loop of duodenum
  3. 9. muscles that make the heart
  4. 11. emergency hormone
  5. 13. chemical substance secreted by endocrine gland
  6. 15. hormone that regulates salt and water balance
  7. 16. state of mental strain
  8. 17. receiving chambers of the heart
  9. 18. master gland
  10. 19. female hormone
Down
  1. 1. gland, like a cap over the kidneys
  2. 2. valve inbetween the left auricle and left ventricle
  3. 4. lower chambers of the heart
  4. 6. hormone that regulates metabolic activities
  5. 7. membrane covering the heart
  6. 8. biological term for RBC
  7. 9. hyposecretion of thyroxine in children
  8. 10. natural pacemaker of the heart
  9. 12. period between 10-19 yrs of age in one's life
  10. 14. lowers the blood sugar