Also found in: Dictionary, Thesaurus, Encyclopedia.
Italian anatomist and physiologist, 1773–1831.
A motor area in the cerebral cortex, situated in the anterior central convolution in front of the fissure of Rolando in each hemisphere.
The furrow between the frontal and parietal lobes of a cerebral hemisphere.Synonym: central fissure; sulcus centralis
A comminuted intra-articular fracture of the base of the first metacarpal with distal fragment subluxation. This fracture is similar to a Bennett fracture, but with more comminution.
Rolando,Luigi, Italian anatomist, 1773-1831.
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(s): central sulcus
rolandic epilepsy - a benign autosomal dominant form of epilepsy occurring in children.
Rolando angle - the angle at which the fissure of Rolando meets with the midplane.
Rolando area - the region of the cerebral cortex most immediately influencing movements of the face, neck and trunk, arm, and leg. Synonym(s): motor cortex
Rolando cells - the nerve cells in Rolando gelatinous substance of the spinal cord.
Rolando column - a slight ridge on either side of the medulla oblongata related to the descending trigeminal tract and nucleus.
Rolando gelatinous substance - the apical part of the posterior horn of the spinal cord's gray matter, composed largely of very small nerve cells. Synonym(s): gelatinous substance
Rolando tubercle - a longitudinal prominence on the dorsolateral surface of the medulla oblongata along the lateral border of the tuberculum cuneatum. Synonym(s): tuberculum cinereum