ENTORHINAL CORTEX Meaning and
Definition
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The entorhinal cortex is a region located in the medial temporal lobe of the brain, adjacent to the hippocampus. It serves as a vital interface between the neocortex and the hippocampus, playing a crucial role in memory formation and spatial navigation. It is primarily responsible for relaying sensory information from various sensory systems, such as the visual, auditory, and olfactory systems, to the hippocampus.
The entorhinal cortex consists of several layers, with each layer having distinct patterns of connections and functions. Specifically, layer II of the entorhinal cortex is considered the primary input layer, receiving sensory inputs from various regions of the neocortex. These inputs, in turn, are projected to the hippocampus via the perforant pathway, forming one of the major pathways for memory consolidation.
Additionally, the entorhinal cortex is involved in spatial memory and navigation processes. Specifically, it contains grid cells that provide information about an individual's location within a given environment. These grid cells have a characteristic firing pattern, which creates a grid-like representation of space and aids in navigation and spatial memory.
Overall, the entorhinal cortex is an integral part of the brain's memory and navigation systems, facilitating the formation and consolidation of memory as well as contributing to spatial orientation and navigation abilities.
Common Misspellings for ENTORHINAL CORTEX
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Etymology of ENTORHINAL CORTEX
The word "entorhinal cortex" is derived from two components: "entorhinal" and "cortex".
The term "entorhinal" comes from the Latin word "enta(r)hinus", which means "near the snout". The prefix "en-" means "in" or "within", and "rhin" refers to the nose or snout. This name was chosen because the entorhinal cortex is located near the olfactory cortex, which is associated with the sense of smell. The entorhinal cortex is situated at the medial temporal lobe of the brain and has connections with other brain areas involved in memory formation and spatial navigation.
The term "cortex" originates from the Latin word "cortēx", which means "bark" or "rind".
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