two cerebral hemispheres which contain gyri (folds), sulci (grooves), and longitudinal cerebral fissure (big sulcus between hemispheres) connected by corpus callosum
The human brain is divided into two cerebral hemispheres, commonly referred to as the left and right hemispheres
The human brain is divided into two cerebral hemispheres, commonly referred to as the left and right hemispheres. Each hemisphere is responsible for controlling various functions and activities in the body. Both hemispheres communicate and cooperate with each other through a structure called the corpus callosum.
The surface of each cerebral hemisphere is covered with folds or bumps called gyri, which increase the surface area of the brain. These gyri allow for a larger number of neurons, the functional cells of the brain, to be packed within a limited volume. They also play a role in processing and integrating information from various brain regions.
In between the gyri are grooves known as sulci, which create a pattern of ridges and valleys on the brain’s surface. The sulci help to divide the brain into different regions and provide structural support. They also contribute to the brain’s overall appearance, as they can vary in depth and shape.
One significant feature of the cerebral hemispheres is the longitudinal cerebral fissure, which is a large sulcus that separates the two hemispheres. This fissure runs from the front to the back of the brain and is responsible for creating the visible division between the left and right hemispheres.
The corpus callosum is a thick band of nerve fibers that connects the two cerebral hemispheres. It allows for communication and coordination between the two sides of the brain. The corpus callosum transfers information, including sensory input and motor signals, from one hemisphere to the other. This integration of information between the hemispheres is crucial for proper functioning and coordinated activities of the brain.
Overall, the gyri, sulci, longitudinal cerebral fissure, and corpus callosum are all important structures within the human brain. They contribute to the brain’s complexity, organization, and functionality, playing a key role in various cognitive, sensory, and motor processes.
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