Rolandon.

Brit.

/rə(ʊ)ˈlandəʊ/, U.S.

/roʊˈlændoʊ/

Origin: From a proper name. Etymon: proper name Rolando.

Etymology: < the name of Luigi Rolando (1773–1831), Italian anatomist, who described the central sulcus in 1825 ( Memorie della Reale Accademia delle Scienze di Torino 29 163) and the substantia gelatinosa in 1828 ( Saggio sopra la vera struttura del cervello (ed. 2) II. 338). With sense 1 compare French sillon de Rolando (F. Leuret 1839, in Anat. Comparée du Syst. Nerv. (1839–57) I. vi. 398).

Anatomy.

1. With of and in the genitive, esp. in fissure of Rolando. Designating the central sulcus, which separates the frontal and parietal lobes on the superolateral surface of the brain, and forms the border between the primary motor and somatosensory areas of the cortex.

ΘΚΠ

the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [noun] > fissure

anfractuosity1687

Sylvian fissure1828

sulcus1833

Rolando1839

valley1839

subfissure1889

subgyre1889

1839–47 Todd's Cycl. Anat. & Physiol. III. 696/2 Two superior convolutions are met with above the fissure of Sylvius, between which is placed..the fissure of Rolando.

1890 Jrnl. Anat. & Physiol. 25 139 It is a question if the fissure of Rolando is present in any other brains than those of Apes and Man.

1921 F. Tilney & H. A. Riley Form & Functions Central Nerv. Syst. xxxvi. 643 The fissure of Rolando has been found interrupted near its middle in the brains of several distinguished men.

1946 M. Lowry Let. 19 Apr. in Sursum Corda! (1995) I. 539 I have forgotten already completely what the book is about, the double success on the same day being like receiving an atom bomb between Rolando's fissure and the Island of Reil.

1961 W. R. Russell & M. L. E. Espir Traumatic Aphasia iii. 18 The upper limit of the speech area, as far as wounds of the central sulcus (fissure of Rolando) are concerned, is about 5 cm. to the left of the sagittal line.

2009 Barr's Human Nerv. Syst. (ed. 9) xiii. 212/1 The central sulcus (sulcus of Rolando; rolandic sulcus) is an important landmark for the sensorimotor cortex because the first somatic sensory area is immediately behind the sulcus, and the primary motor area is immediately in front of it.

2. With of, in the genitive, and attributive. Designating the substantia gelatinosa, a layer of somewhat translucent tissue that forms the apical part of the posterior grey columns of the spinal cord.

ΘΚΠ

the world > life > the body > nervous system > cerebrospinal axis > spinal cord > [noun] > substances of

Rolando1853

ventricornu1890

horn cell1898

spongiosa1947

1853 G. Busk & T. H. Huxley tr. A. Kölliker Man. Human Histol. I. 408 The posterior, longer and thinner [horns]..at the free edge are invested with a more transparent layer, containing a preponderance of smaller nerve-cells—the substantia gelatinosa of Rolando [Ger. substantia gelatinosa Rolando].

1857 Med. Times & Gaz. 7 Nov. 481/2 The central nervous system is composed of grey substance, of white substance, and of an intermediate substance, termed the gelatinous substance of Rolando.

1899 L. F. Barker Nerv. Syst. 473 Meridian bundles passing through Rolando's substance.

1929 E. E. Hewer & G. M. Sandes Introd. Study Nerv. Syst. vi. 20 Fibres..giving off collaterals arborising round cells of the substantia gelatinosa of Rolando.

1976 Exper. Brain Res. 27 77 Peripheral neurotomy..induced a series of peculiar, sui generis alterations, both in the Rolando substance and in the dorsal column.

2008 Ann. Anat. 190 140 The decrease in the pain-related neuropeptide substance P..from the segmentally related, ipsilateral substance of Rolando of the spinal cord.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online June 2022).

单词	rolando
释义	Rolandon. Brit. /rə(ʊ)ˈlandəʊ/, U.S. /roʊˈlændoʊ/ Origin: From a proper name. Etymon: proper name Rolando. Etymology: < the name of Luigi Rolando (1773–1831), Italian anatomist, who described the central sulcus in 1825 ( Memorie della Reale Accademia delle Scienze di Torino 29 163) and the substantia gelatinosa in 1828 ( Saggio sopra la vera struttura del cervello (ed. 2) II. 338). With sense 1 compare French sillon de Rolando (F. Leuret 1839, in Anat. Comparée du Syst. Nerv. (1839–57) I. vi. 398). Anatomy. 1. With of and in the genitive, esp. in fissure of Rolando. Designating the central sulcus, which separates the frontal and parietal lobes on the superolateral surface of the brain, and forms the border between the primary motor and somatosensory areas of the cortex. ΘΚΠ the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [noun] > fissure anfractuosity1687 Sylvian fissure1828 sulcus1833 Rolando1839 valley1839 subfissure1889 subgyre1889 1839–47 Todd's Cycl. Anat. & Physiol. III. 696/2 Two superior convolutions are met with above the fissure of Sylvius, between which is placed..the fissure of Rolando. 1890 Jrnl. Anat. & Physiol. 25 139 It is a question if the fissure of Rolando is present in any other brains than those of Apes and Man. 1921 F. Tilney & H. A. Riley Form & Functions Central Nerv. Syst. xxxvi. 643 The fissure of Rolando has been found interrupted near its middle in the brains of several distinguished men. 1946 M. Lowry Let. 19 Apr. in Sursum Corda! (1995) I. 539 I have forgotten already completely what the book is about, the double success on the same day being like receiving an atom bomb between Rolando's fissure and the Island of Reil. 1961 W. R. Russell & M. L. E. Espir Traumatic Aphasia iii. 18 The upper limit of the speech area, as far as wounds of the central sulcus (fissure of Rolando) are concerned, is about 5 cm. to the left of the sagittal line. 2009 Barr's Human Nerv. Syst. (ed. 9) xiii. 212/1 The central sulcus (sulcus of Rolando; rolandic sulcus) is an important landmark for the sensorimotor cortex because the first somatic sensory area is immediately behind the sulcus, and the primary motor area is immediately in front of it. 2. With of, in the genitive, and attributive. Designating the substantia gelatinosa, a layer of somewhat translucent tissue that forms the apical part of the posterior grey columns of the spinal cord. ΘΚΠ the world > life > the body > nervous system > cerebrospinal axis > spinal cord > [noun] > substances of Rolando1853 ventricornu1890 horn cell1898 spongiosa1947 1853 G. Busk & T. H. Huxley tr. A. Kölliker Man. Human Histol. I. 408 The posterior, longer and thinner [horns]..at the free edge are invested with a more transparent layer, containing a preponderance of smaller nerve-cells—the substantia gelatinosa of Rolando [Ger. substantia gelatinosa Rolando]. 1857 Med. Times & Gaz. 7 Nov. 481/2 The central nervous system is composed of grey substance, of white substance, and of an intermediate substance, termed the gelatinous substance of Rolando. 1899 L. F. Barker Nerv. Syst. 473 Meridian bundles passing through Rolando's substance. 1929 E. E. Hewer & G. M. Sandes Introd. Study Nerv. Syst. vi. 20 Fibres..giving off collaterals arborising round cells of the substantia gelatinosa of Rolando. 1976 Exper. Brain Res. 27 77 Peripheral neurotomy..induced a series of peculiar, sui generis alterations, both in the Rolando substance and in the dorsal column. 2008 Ann. Anat. 190 140 The decrease in the pain-related neuropeptide substance P..from the segmentally related, ipsilateral substance of Rolando of the spinal cord. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online June 2022). < n.1839
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