What are association fibers?

necessary to allow communication between certain areas of the brain are nerve fibers in fact by spreading nerve cells referred to as axons. They are also called U-sink, connected nerve fibers are divided into two types: association fibers and commissural nerve fibers. While association nerve fibers are essential for communication between parts of the same brain hemispheres, commissural fibers are responsible for connections across two hemispheres of the brain. Each nerve cell consists of body or soma and spiders similar to the extension that stands out of it, known as dendrites. Axons are long, thin fibers attached to soma of each cell, have several small branches with bulbs at each end called terminals that contain neurotransmitters, chemicals responsible for communication between nerve cells. Dendrits receive information when the axons transmit it from the cell body in the form of electrical pulses. Of all the neurons in the brain, those of the association fibers are the most abundant type.

There are many types of nerve fibers in the human body; However, it is a connection of fibers that are responsible for the transfer of information only in the areas of the brain. Association fibers are myelinated axons located just below the cerebral peel, which are covered with glial cells that work on insulation and impulses very quickly. Since the association fibers are necessary for connecting on the same side of the brain, short association fibers specifically combine parts in a certain lobe, such as the Wernicke area located in a time lobe necessary for understanding the language. Especially responsible for the interconnection of one lobe with Anovenka, a long association, such as longitudinal longitudinal fasculus, allows time and rear lobes to communicate with each other.

Some diseases are destroyed by association fibers, including the myelin pockets that surround them. Since 2011, multiple sclerosis (MS) is the number one illnessobující demyelinizaci, rozpad bílé hmoty, což vede ke zpomalení nebo úplnému zastavení nervových impulsů a vytváří symptomy indikující poškození centrálního nervového systému (CNS). Časný nástup je charakterizován obdobími senzorické ztráty pocitu nebo parestézie, což je podmínka, ve které se končetina cítí, jako by to pichlo, svědění a brnění. Symptoms at the beginning generally come and leave, for months, even years, among them. Předpokládá se, že je způsobeno kombinací genetiky a faktorů prostředí, útoky MS na CNS jsou způsobeny autoimunitní odezvou, kde tělo reaguje na své vlastní tkáně, což vede k zánětu a vede k nervovému celůml Poškození. Although there is no medicine for MS, symptoms may be managed and its progression has slowed down.