| Rolando's gelatinous substance | The apical part of the posterior horn (dorsal horn; posterior gray column) of the spinal cord's gray matter, composed largely of very small nerve cells; its gelatinous appearance is due to its very low content of myelinated nerve fibres. Synonym: substantia gelatinosa, Rolando's gelatinous substance, Rolando's substance. (05 Mar 2000) |
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| gelatinous substance | The apical part of the posterior horn (dorsal horn; posterior gray column) of the spinal cord's gray matter, composed largely of very small nerve cells; its gelatinous appearance is due to its very low content of myelinated nerve fibres. Synonym: substantia gelatinosa, Rolando's gelatinous substance, Rolando's substance. (05 Mar 2000) |
| Stilling's gelatinous substance | The central gray matter of the spinal cord surrounding the central canal. Synonym: substantia intermedia centralis et lateralis, anterior gray column, Stilling's gelatinous substance, substantia gelatinosa centralis. (05 Mar 2000) |
| Rolando, Luigi | <person> Italian anatomist, 1773-1831. See: Rolando's angle, Rolando's area, Rolando's cells, Rolando's column, rolandic epilepsy, Rolando's gelatinous substance, Rolando's tubercle, fissure of Rolando. (05 Mar 2000) |
| Rolando's angle | The angle which the fissure of Rolando (central sulcus) makes with the midplane. (05 Mar 2000) |
| Rolando's area | Area of the frontal lobe concerned with primary motor control. It lies anterior to the central sulcus. (12 Dec 1998) |
| Rolando's cells | The nerve cell's in Rolando's gelatinous substance of the spinal cord. (05 Mar 2000) |
| Rolando's column | A slight ridge on either side of the medulla oblongata related to the descending trigeminal tract and nucleus. (05 Mar 2000) |
| Rolando's tubercle | A longitudinal prominence on the dorsolateral surface of the medulla oblongata along the lateral border of the tuberculum cuneatum; it is the surface profile of the spinal tract of trigeminal nerve, continuous caudally with the dorsolateral fasciculus (Lissauer's tract). Synonym: ashen tubercle, gray tubercle, Rolando's tubercle. (05 Mar 2000) |
| fissure of Rolando | A double-S-shaped fissure extending obliquely upward and backward on the lateral surface of each cerebral hemisphere at the boundary between frontal and parietal lobes. Synonym: sulcus centralis, fissure of Rolando. (05 Mar 2000) |
| gelatinous | 1. Pertaining to or characteristic of gelatin. 2. Jelly-like or resembling gelatin. Synonym: gelatinoid. (05 Mar 2000) |
| gelatinous ascites | <radiology> Rupture of: ovarian pseudomucinous cystadenoma, appendicial mucocele, mucinous material in peritoneum, with or without diffuse abdominal calcification (12 Dec 1998) |
| gelatinous infiltration | A term sometimes used for the relatively rapidly formed, semisolid, gray or gray-white exudate (chiefly necrotic cells and remnants of tissue, and macrophages) resulting from unusually acute, overwhelming, diffuse tuberculous infection in the lung. Synonym: gelatinous infiltration. (05 Mar 2000) |
| gelatinous lesion | A small area of oedema in the arterial intima, possibly a precursor of a fibrous plaque. (18 Nov 1997) |
| gelatinous nucleus | The soft fibrocartilage central portion of the intervertebral disk; regarded as a derivative of the notochord. Synonym: gelatinous nucleus, nucleus gelatinosus, vertebral pulp. (05 Mar 2000) |