Endocrinology is defined as the study of how chemical messenger molecules, referred to as hormones, influence physiological processes. By definition, a hormone is a signaling molecule that is released into the bloodstream, where the hormone can then travel to distant target cells and tissues within the body. Along with the nervous system, the hormones of the endocrine system provide an important means by which information travels within the body. Test your basic knowledge of the endocrine system by taking this simple quiz.
 |
 |
 |
 |
 |
— share —
(1) Based on chemical structure, the thyroid hormones, triiodothyronine (T3) and tetraiodothyronine (T4, also called thyroxine), belong to this class of hormones:
(2) Based on chemical structure, the catecholamines, epinephrine, norepinephrine, and dopamine, belong to this class of hormones:
(3) Based on chemical structure, aldosterone belongs to this class of hormones:
(4) Based on chemical structure, the antidiuretic hormone (ADH, also called vasopressin), belongs to this class of hormones:
(5) Based on chemical structure, insulin belongs to this class of hormones:
Checking your answers...
Posted: Monday, February 29, 2016
Last updated: Tuesday, March 11, 2025
Last updated: Tuesday, March 11, 2025
— share —