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regulation
| Term | Definition |
|---|---|
| hormone | a chemical messenger. |
| prostaglandins | local hormones found in every cells. |
| feedback | a response to an original action. |
| thyroxin | a hormone produced by the thyroid gland. |
| hypothalamus | (the boss) structure in the brain that is part of nerve regulation and chemical regulation. |
| gland | structure or organ that release hormones. |
| endocrine glands | glands that secrete hormones inside the body. |
| exocrine glands | glands that secrete hormones outside the body. |
| glucagon | hormone that increase the blood sugar level made by the liver. |
| glycogen | extra glucose (sugar). |
| insulin | hormone that reduce the blood sugar level made by the liver. |