a raised fold of brain tissue
                                                            
                                                     
                        
                                                
                        
                        
                            term referring to the elevated ridges of tissue covering the surface of the cerebral hemisphere
                                                            
                                                     
                        
                                                
                        
                        
                            One of the convolutions of the cerebral hemispheres of the brain. The upraised ridges of the cerebrum.
                                                            
                                                     
                        
                                                
                        
                        
                            a convex fold or elevation in the surface of the brain 
                                                            
                                                     
                        
                                                
                        
                        
                            a fold or "bump" in the brain
                                                            
                                                     
                        
                                                
                        
                        
                            L. from Gr. gyros, circle. Cerebral gyri.
                                                            
                                                     
                        
                                                
                        
                        
                            Large convolution between adjacent fissures.
                                                            
                                                     
                        
                                                
                        
                        
                            An infolding of the cerebral cortex not produced by the embryonic vesicles, and not so deep as to produce indentations upon the walls of the cerebral ventricles.
                                                            
                                                     
                        
                                                
                        
                        
                            a fold or convolution of the cerebral cortex.
                                                            
                                                     
                        
                                                
                        
                        
                            A "gyrus" (, plural "gyri" ) is one of the many sausage-like protrusions on each hemisphere. Gyri are separated by sulci.
                                                            
                                                     
                        
                                                
                        
                        
                            "Hills" or "bumps" on the brain that are separated by fissures.
                                                            
                                                     
                        
                                                
                        
                        
                            (plural is gyri) - these are high areas on the brain that are separated by fissures.
                                                            
                                                     
                        
                                                
                        
                        
                            A gyrus (pl. gyri) is a ridge on the cerebral cortex. It is generally surrounded by one or more sulci.