| A | B |
|---|
| endocrine gland | a ductless gland whose secretions diffuse into the blood |
| exocrine gland | gland that secretes substance into a duct or tube (like salivary gland) |
| hormone | chemical messenger secreted by endocrine gland |
| hypersecretion | excessive secretion of hormone or other product |
| hyposecretion | insufficient production or secretion of hormone or other product |
| prostaglandin | chemical released by cells producing local actions by nearby cells |
| target cells | cells whose functions are affected by a specific hormone |
| steroid hormones | hormones made from cholesterol |
| nonsteroid hormones | hormones made from amino acids (protein hormones) |
