| Answer | Crossword Clue |
|---|---|
| monokine | a substance secreted by white blood cells |
| monokines | MONOKINE, a substance secreted by white blood cells |
| leucocidin | a bacterial substance that destroys white blood cells also LEUKOCIDIN |
| leucocidins | LEUCOCIDIN, a bacterial substance that destroys white blood cells also LEUKOCIDIN |
| erythropoietin | A hormone secreted by the kidneys that increases the rate of production of red blood cells in response to falling levels of oxygen in the tissues |
| insulin | a protein pancreatic hormone secreted by the beta cells of the islets of Langerhans that is essential especially for the metabolism of carbohydrates and the regulation of glucose levels in the blood and that when insufficiently produced results in diabetes mellitus |
