What are limbic structures?
Limbic structures are organs in the human brain that form a limbic system. The limbic system is involved in emotional reaction, memory and basic processes such as engine function. Limbic structures are located in the central part of the brain, at the base of the cortex. For this reason, the name for the limbic system of the basal ganglie is more accurate. Ganglia is a term for structures composed of nerve cells, as all brain structures are.
The word limbic comes from the Latin phrase referring to the edge or threshold. Scientists of the 20th century brain noted that basal ganglias are located at the point between the mose that regulates the basic physical processes, and the neocortex, where higher brain functions arise. Thus, these border areas referred to as limbic structures or limbic system. Scientists as Dr. Paul Maclean, who created the term limbic system, believed that this area is progress in the evolutionary Develovipment brain. Later research proved to be an inaccurate theory but limbic structuresThey are still essential for human behavior and survival.
Individual limbic structures include amygdal and hippocampus that regulate emotional reaction and memory. Hippocampus is also involved in spatial orientation, as well as the nearby paraahippocampal gyrus. Hypothalamus and Cinguelate Gyrus regulate the function of the body such as sleep, heart rate and digestion. Thalamus and Fornix communicate information to these organs to other parts of the brain. The nearby Accumbens core, the center of brain pleasure, is sometimes considered a limbic structure.
Despite their high degree of importance in regulating the functions of brain and body, limbic structures are relatively small. For example, hypothalamus in an adult weighs decimal (4 g). This is a fraction of the total weight of the brain about three pounds (1.3 kg).
Scientists are biased by a narrow connection between limbic structures, a center for pleasure and brain bark. This can explainHow people can get the pleasure of unlikely stimuli, such as a memory of kind memory or tasting good wine. The function of limbic structures and other brain organs is a matter of an ongoing study. For example, examination of patients with brain injury shows that memory is a function of brain as a whole and is not only dependent on hippocamp. There are indications that the limbic system is a too simplified idea and that the real relationships between limbic and other brain structures may be much more complicated than they once believed.