The rate of production of a given hormone is most commonly regulated by a mechanism called a [negative feedback]? loop.
The notion "endocrine" is contrasted with "exocrine", which means a specialized gland with a distinct secretory duct. Examples of exocrine glands are salivary or sweat glands; examples of endocrine glands are thyroid and adrenal glands.
The most important hormones:
One special group of hormones are [trophic hormone]?s that act as stimulants of hormone production of other endocrine glands. For example thyroid stimulating hormone (TSH) causes growth and increased activity of another endocrine gland--the thyroid--hence increasing output of thyroid hormones.