It extends from the most anterior part to the Rolando fissure. It is located in the front, just behind the forehead. It is the largest lobe of the cerebral cortex. The areas of cerebral cortex that remain between these fissures are what we know as lobes: Frontal lobe These lobes are delimited by four cerebral fissures: central or Roland fissure, lateral or Silvio fissure, parieto-occipital fissure and cingulate fissure. Each hemisphere, in its time, is divided into 4 lobes Because a large brain needs more space, one explanation for why wrinkles exist is that the folds allow the surface area of вЂ‹вЂ‹the cerebral cortex to increase within a confined space such as the skull. In the human species, the brain has increased in size rapidly during its evolution and is mainly due to the growth of the cortex. This tells us that brain development is similar between different animals. It is interesting to mention that the most prominent gyri are conserved between individuals and even, sometimes, between species. When an embryo is developing, the brain begins to grow with a smooth surface.ДЄs the brain grows, the cerebral cortex begins to form gyrification - the formation of grooves and gyri. The cerebral cortex is a thin layer that covers the cerebral hemispheres and is involved in cognitive processes such as memory, language and the formation of consciousness. In this article we will see which are the most important, and we will study their main characteristics. Virtually all vertebrate animals present fissures in the brain, but human fissures are the most complex of all. Thus, the information processing capacity increases without having to increase the size of the skull. Its main function is to increase the surface area of this organ, in such a way that a greater number of neurons accumulate in the cortex. They are the part that gives the brain its wrinkled appearance, and its function is fundamental in the development of human intelligence and our higher mental capacities.Д«rain fissures can be divided into gyrus and sulci, depending on their exact anatomy. The fissures of the brain are the grooves and folds present on the surface of the cerebral cortex. The brain has convolutions and grooves to increase the surface area of the cerebral cortex and thus allow more neurons to accumulate in the cortex and thus increase the brainвЂ™s ability to process information. In this post we are going to answer вЂвЂ™Why does the brain have gyri and sulci?вЂ™вЂ™ We will describe each gyri and sulci in the brain, how they are formed and why they are important.

The sunken formations are called grooves and the raised parts, gyrus, and they occur because the cerebral cortex bends. The folds of the brain are not there randomly and they even have names. When we think of a brain, the first thing that comes to mind is a large pink and wrinkled mass, right? But why does the brain have wrinkles and what are those wrinkles or folds made of?

Sulci of the brain