What is UNCUS?

UNCUS, also called unclear gyrus, is an area of ​​the brain made of white matter, located at the tip of the medial surface of the parahippocampal gyro. It is part of the temporal lobe located at the bottom of the brain under the frontal lobe directly near the base of the brain stem. Within the olfactory bark, UNCUS processes the smell information. The cordial lobe and the olfactory area of ​​the lobe are connected by an olfactory tract and an anterior commission. These nerves bring information stored on neurons to UNCu for processing. This area is part of the olfactory system of the frontal lobe. Oneaxons moved from the bulb area and headed to the UNCUS, which is part of the olfactory bark. Two parts of the olfactory bark are unrus in the shape of a hook and another separate part on the frontal lobe.

After crossing UNCU, further processing of olfactory information is on the island bark. Smell and taste information is combined here to send signals to the moschFor other levels of processing, such as perception of taste and taste. If the olfactory nerve is damaged in a head or tumor injury, resulting in a loss of olfactory, the taste is usually also affected. If seizures are formed in this area, many individuals report that they first experience strange phantom fragrances. If the sense of smell is damaged, only one nostril may be affected because the nerve endings are separate for each.

UNCUS is located directly on the top of the amygdala, almost surrounds. This area of ​​the brain processes emotions and emotional memory. Many different parts of the brain communicate with Amygdala, including the olfactory bulb.

Increased size of temporal lobe can cause uncal herniation. The olfactory system often shows the first indication that there are some main problems with the function of the brain. When this happens, UNCUS pushes down the skull nerve adjacent to the brain stem. Untilized this can lead to central herniation and the possibilities of coma and diabetes Insipidus.