ENTORHINAL AREA Meaning and
Definition
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The entorhinal area refers to a region of the brain that plays a crucial role in the processing of memory and spatial navigation. Situated within the medial temporal lobe, specifically the caudal portion of the cerebral cortex, the entorhinal area serves as a gateway between the neocortex and the hippocampus, facilitating the flow of information between these regions.
The entorhinal area consists of several interconnected subregions, including the lateral entorhinal cortex (LEC) and the medial entorhinal cortex (MEC). The LEC is primarily involved in processing sensory information and transmitting it to the MEC, which is responsible for distinguishing spatial information and generating grid-like neuronal activity. This grid-like representation helps organisms navigate their environment and form cognitive maps.
Furthermore, the entorhinal area is vital for episodic memory encoding and retrieval. It acts as a hub where information from the neocortex is consolidated and transformed into memory representations, which are subsequently relayed to the hippocampus for long-term storage. Dysfunction or damage to the entorhinal area has been associated with memory disorders such as Alzheimer's disease, as well as spatial navigation impairments.
In summary, the entorhinal area can be defined as a region of the brain involved in the integration and processing of sensory information, spatial navigation, and memory formation.
Common Misspellings for ENTORHINAL AREA
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Etymology of ENTORHINAL AREA
The word "entorhinal" is derived from the Greek roots "entos" meaning "within" and "rhin" meaning "nose". The term was first introduced by German anatomist Theodor Meynert in the late 19th century to describe a region located deep within the brain. This area was named "entorhinal" due to its position within the brain, close to the olfactory bulbs, which are associated with the sense of smell. Thus, the term "entorhinal area" refers to the particular region within the brain that Meynert identified and named.
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