LOBULUS QUADRANGULARIS Meaning and
Definition
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Lobulus quadrangularis refers to a specific anatomical structure within the brain, which is primarily associated with the human cerebellum. Also known as the quadrangular lobule, it is one of the ten lobules that make up the vermis region of the cerebellum, situated centrally in the posterior fossa of the brain.
The lobulus quadrangularis is a small, rounded portion of the cerebellum, located beneath the superior portion of the vermis, and it is anatomically distinguished by its distinctive quadrilateral shape. It can be found between the lobulus semilunaris superior (superior semilunar lobule) and the lobulus semilunaris inferior (inferior semilunar lobule), forming part of the middle section of the vermis. The term "quadrangularis" is derived from its four-sided appearance when viewed from above.
Functionally, the lobulus quadrangularis is involved in the coordination and fine control of motor movements. It plays a crucial role in the regulation and modulation of voluntary movements, balance, and coordination, aiding in the smooth execution of both simple and complex motor tasks. This region of the cerebellum receives input from various neural pathways and integrates this information to help coordinate body movements and maintain postural stability.
In summary, lobulus quadrangularis is a specific quadrilateral-shaped lobule located within the cerebellum, involved in motor coordination and control.
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Quadrangular lobule, l. quadratus, the main portion of the superior part of each hemisphere of the cerebellum, corresponding to the monticulus of the vermis; it is divided into two portions, the anterior and the posterior crescentic lobules, corresponding to the culmen and the declive of the vermis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for LOBULUS QUADRANGULARIS
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