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.
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(1) The pineal gland produces this hormone:
(2) Oxytocin is produced by secretory neurons within this region of the hypothalamus:
(3) Antidiuretic hormone (ADH, also called vasopressin) is produced by secretory neurons within this region of the hypothalamus:
(4) The cortex of each adrenal gland comprises approximately __________ of the total mass of the gland.
(5) The medulla of each adrenal gland comprises approximately __________ of the total mass of the gland.
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Posted: Thursday, February 18, 2016
Last updated: Tuesday, March 11, 2025
Last updated: Tuesday, March 11, 2025
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