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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.
Created by: rivera703