We do not experience our brain as an assembly of physical structures nor would we wish to, perhaps ; if we envision it at all, we are likely to see it as a large, rounded walnut, grayish in color. This schematic image refers mainly to the cerebral cortex, the outermost layer that overlies most of the other brain structures like a fantastically wrinkled tissue wrapped around an orange. The preponderance of the cerebral cortex which, with its supporting structures, makes up approximately 80 percent of the brain's total volume is actually a recent development in the course of evolution. The cortex contains the physical structures responsible for most of what we call ''brainwork":
It plays a role in just about every major body system. Some of its main functions include: The two hemispheres are separated by a groove called the interhemispheric fissure. Each hemisphere of the cerebrum is divided into broad regions called lobes.
Each lobe is associated with different functions: The frontal lobes are the largest of the lobes. They coordinates high-level behaviors, such as motor skills, problem solving, judgment, planning, and attention.
The frontal lobes also manage emotions and impulse control. The parietal lobes are located behind the frontal lobes. The temporal lobes are located on either side of the head on the same level as the ears.
They coordinate specific functions, including visual memory such as facial recognitionverbal memory such as understanding languageand interpreting the emotions and reactions of others. The occipital lobes are located in the back of the brain. Cerebellum The cerebellum is located in the back of the brain, just below the occipital lobes.
It also helps the body maintain its posture, equilibrium, and balance.The human brain is the command center for the human nervous system.
It receives signals from the body's sensory organs and outputs information to the muscles. Brain Stem: Underneath the limbic system is the brain stem. This structure is responsible for basic vital life functions such as breathing, heartbeat, and blood pressure. This structure is responsible for basic vital life functions such as breathing, heartbeat, and blood pressure.
Visual functions occupy the occipital lobe, the bulge at the back end of the brain. The primary area for visual perception is almost surrounded by the much larger visual association area.
Nearby, extending into the lower part of the temporal lobe, is the association area . The brain is an organ that’s made up of a large mass of nerve tissue that’s protected within the skull.
It plays a role in just about every major body system. The cerebrum is the largest part. Mid-brain Superior colliculi coordinate movements of the head, eyes, and trunk in response to visual stimuli.
The inferior colliculi coordinates the head, eyes, and trunk in response to auditory stimuli. The brain is an amazing three-pound organ that controls all functions of the body, interprets information from the outside world, and embodies the essence of the mind and soul.
Intelligence, creativity, emotion, and memory are a few of the many things governed by the brain.