GENERAL HISTOLOGY

Detailed explanation-1: -Between these gyri are grooves or indentations called sulci (singular: sulcus). The deep sulci are known as fissures, and they separate the cerebral cortex into four main subdivisions or lobes: frontal, parietal, temporal and occipital lobes.

Detailed explanation-2: -Each cerebral hemisphere divides into four separate lobes by a central sulcus, parieto-occipital sulcus, and lateral fissure. The central sulcus runs posterior-medial to anterior-lateral and separates the frontal lobe from the parietal lobe.

Detailed explanation-3: -The main cerebral fissures are the lateral fissure, or fissure of Sylvius, between the frontal and temporal lobes; the central fissure, or fissure of Rolando, between the frontal and parietal lobes, which separates the… … gyri is known as a sulcus.

Detailed explanation-4: -The deep furrows are called fissures and shallow ones are called sulci (singluar; sulcus). The ridges between the sulci are known as a gyri (singular; gyrus). Major sulci and fissures divide each hemisphere into four lobes: the frontal, parietal, occipital, and temporal lobes.