A sulcus is a shallow groove that surrounds a gyrus or part of a gyrus. A fissure is a deeper furrow that divides the brain into lobes, and also into the two hemispheres as the longitudinal fissure. [4]

May 7, 2025 · Sulci (singular: sulcus) are the grooves or furrows that separate the gyri. This pattern of folds increases the brain’s surface area, packing in more neurons without increasing the brain’s size.

Jul 31, 2025 · A sulcus (plural: sulci) refers to a shallow depression or groove found on the cerebral cortex. These grooves separate the raised ridges, known as gyri (singular: gyrus). Together, sulci …

The meaning of SULCUS is furrow, groove; especially : a shallow furrow on the surface of the brain separating adjacent convolutions.

This cortical region runs mediolaterally along the posterior bank of the suprasylvian sulcus, and is distinct from adjoining areas in anatomical architecture.

Jan 20, 2026 · Noun sulcus (plural sulci) (anatomy) A furrow or groove in an organ or a tissue, especially that marking the convolutions of the surface of the brain.

ciliary sulcus A groove situated between the posterior root of the iris and the ciliary body. It may be used, sometimes, as a site of fixation of an intraocular lens implant.

Nov 9, 2025 · Explore the anatomical meaning of a sulcus, the grooves and furrows on the brain's surface. Understand its role in increasing surface area and defining functional regions.

Identify the major fissures and sulci of the human brain. Fissures or grooves in the surface of the cortex are called sulci (singular, sulcus; Latin, “furrow, groove, ditch, trench”). Deep grooves are called …

Oct 30, 2023 · The central sulcus is a large sulcus of the brain located between the frontal and parietal lobes. Learn more about its anatomy now on Kenhub!