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reticular formation

noun
1.
a network of neurons in the brainstem involved in consciousness, regulation of breathing, the transmission of sensory stimuli to higher brain centers, and the constantly shifting muscular activity that supports the body against gravity.
Origin
1885-1890
1885-90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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reticular-formation in Medicine

reticular formation n.
A massive but vaguely delimited neural apparatus composed of closely intermingled gray and white matter, extending the length of the spinal cord and into the diencephalon, and having a dominant role in the central control of autonomic and endocrine functions, bodily posture, skeletomuscular reflex activity, and general behavioral states. Also called reticular substance.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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reticular-formation in Science
reticular formation
  (rĭ-tĭk'yə-lər)   
A complex network of neurons and axons that is located throughout the brainstem. The reticular formation regulates consciousness, sleep, and wakefulness.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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