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) Melatonin is produced by the:
(2) The plasma osmolality threshold for stimulating thirst is approximately:
(3) Axons of hypothalamic magnocellular neurons that terminate in the posterior pituitary are myelinated
(4) Antidiuretic hormone (ADH, also referred to as vasopressin) is co-released with the following peptide(s) from axon terminals of hypothalamic magnocellular neurons
(5) Oxytocin is co-released with the following peptide(s) from axon terminals of hypothalamic magnocellular neurons
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Posted: Monday, June 20, 2016
Last updated: Tuesday, March 11, 2025
Last updated: Tuesday, March 11, 2025
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