Based on the Random House Dictionary, © Random House, Inc. 2012.
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| Symbol: Nd; atomic weight: 144.24; atomic number: 60 |
| Symbol: U; atomic weight: 238.03; atomic number: 92 |
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neurohormone neu·ro·hor·mone (n&oobreve;r'ō-hôr'mōn, ny&oobreve;r'-)
n.
A hormone secreted by or acting on a part of the nervous system.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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neurohormone  (n r'ō-hôr'mōn) Pronunciation Key
A hormone that is produced and secreted by neurons and that effects its action on the nervous system. The hormones secreted by the hypothalamus that in turn control the secretions of the pituitary gland are neurohormones. |
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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neurohormone
any of a group of substances produced by specialized cells (neurosecretory cells) structurally typical of the nervous, rather than of the endocrine, system. The neurohormones pass along nerve-cell extensions (axons) and are released into the bloodstream at special regions called neurohemal organs. Neurohormones thus constitute a linkage between sensory stimuli (events or conditions perceived by the nervous system) and chemical responses (endocrine secretions that act on other tissues of the endocrine system or on tissues of other systems, such as those involved with excretion or reproduction)
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