HIPPOCAMPAL FISSURE Meaning and
Definition
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The hippocampal fissure refers to a prominent groove or indentation that separates the anatomical structures of the hippocampus within the brain. It is a narrow cleft located along the medial surface of the temporal lobe, deep within the brain's medial temporal lobe structures. The medial temporal lobe, where the hippocampus resides, plays a crucial role in memory formation and consolidation.
Within the brain, the hippocampal fissure serves as a boundary, separating the hippocampus proper from surrounding structures, such as the parahippocampal gyrus. It consists of a deep, elongated groove that runs horizontally along the longitudinal axis, dividing the hippocampus into two primary parts: the head and the body. The head lies anteriorly, closer to the frontal lobe, while the body extends posteriorly, towards the occipital lobe.
The fissure encompasses a complex network of neural pathways, including fibers from the fornix, a bundle of nerve fibers connecting the hippocampus to other brain regions. It also contains the alveus, a white matter layer that lines the hippocampus, as well as blood vessels and supporting tissues.
Understanding the anatomy and function of the hippocampal fissure is crucial for studying memory processes, learning, and associated cognitive functions. Moreover, it has clinical significance in neurosurgery and medical imaging, as abnormalities within the hippocampal fissure may contribute to various neurological disorders, including epilepsy and Alzheimer's disease.
Common Misspellings for HIPPOCAMPAL FISSURE
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- hippicampal fissure
- hippkcampal fissure
Etymology of HIPPOCAMPAL FISSURE
The word "hippocampal" is derived from the Greek words "hippos" meaning "horse" and "kampos" meaning "sea monster". It refers to the shape of the hippocampus, which was thought to resemble a seahorse. The word "fissure" comes from the Latin word "fissura" meaning "a cleft or crack". In the context of the brain, a fissure refers to a deep groove or indentation. Therefore, "hippocampal fissure" describes the groove or indentation found in the hippocampus.
