Psych M.D. - Endocrine System


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Term: Endocrine System
Definition (Myers): The body's "slow" chemical communication system; a set of glands that secrete hormones into the bloodstream.
Definition (alternative): The network of glands that manufacture and secrete hormones into the bloodstream. *
Contextual explanation: The endocrine system is one of the body's communication systems that works with the nervous system. It consists of glands which secrete another form of chemical messengers called hormones. Hormones originate in one tissue, travel through the bloodstream, and affect other tissues, including the brain. Some of the main glands of the endocrine system are the pituitary gland, thyroid gland, parathyroids, adrenal glands, and the pancreas. Although similar to the nervous system, the endocrine system is different in how it functions slower. It takes several seconds or more for the bloodstream to carry a hormone from an endocrine gland to a tissue. Nevertheless, endocrine messages are important because their effects usually outlast the effects of a neural message.
Related terms and concepts: Nervous System, Hormones,Neuron,Autonomic Nervous System
Psych M.D. - Endocrine System - The Neuron
Related websites: http://kidshealth.org/parent/general/body_basics/endocrine.html, http://biology.clc.uc.edu/courses/bio105/endocrin.htm, http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookENDOCR.html
Edited by: Susie



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