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fissure of rolando

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fis⋅sure of Ro⋅lan⋅do

  [roh-lan-doh, -lahn-] .
Use fissure of rolando in a Sentence
–noun
central sulcus.
Origin:
named after L. Rolando (d. 1831), Italian anatomist
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central sulcus

 
–noun Anatomy.
the sulcus separating the frontal and parietal lobes of the cerebrum.
Also called fissure of Rolando.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: central sulcus
Function: noun
: the sulcus separating the frontal lobe of the cerebral cortex from the parietal lobe called also fissure of Rolando,Rolandic fissure

Main Entry: fissure of Ro·lan·do
Pronunciation: -rO-'lan-(")dO, -'län-
Function: noun
: CENTRAL SULCUS
Rolando, Luigi (1773–1831), Italian anatomist and physiologist. Rolando did hisearly research on the anatomy and physiology of the nervous system in humans and animals, using comparative methods. His most important studies, however, concerned the anatomy, physiology, andembryology of the brain. He paid particular interest to the gray matter. He was the first to investigate the functions of the cerebellum. In an 1824 report on the brain he described the motor area inthe cerebral cortex comprising both the precentral and the postcentral gyri. This area is now known as the Rolandic area. In 1825 he published his observations on the cerebellum. One of the featuresdescribed was a fissure between the parietal and frontal lobes. This is now often called the fissure of Rolando.
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

central sulcus n.
See fissure of Rolando.

fissure of Rolando or Rolando's fissure
n.
A double S-shaped fissure that extends obliquely upward and backward on the lateral surface of each cerebral hemisphere of the brain and located at the boundary between the frontal and parietal lobes. Also called central sulcus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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