PYRAMIS MEDULLAE OBLONGATAE Meaning and
Definition
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Pyramis medullae oblongatae refers to a prominent triangular ridge that appears on the ventral surface of the medulla oblongata. The medulla oblongata is the lowermost part of the brainstem, located between the pons and spinal cord. It is responsible for numerous vital functions of the body, such as controlling autonomic functions like heart rate, blood pressure, and respiratory rhythm.
The pyramis medullae oblongatae is an anatomical structure that anteriorly lies on the surface of the medulla oblongata. It is made up of two distinct bands of nerve fibers that run along the anterior median fissure. These bands consist of the corticospinal tracts, which are responsible for controlling voluntary movements and transmitting neural signals from the motor cortex to the spinal cord.
The pyramis medullae oblongatae is essentially a pathway for motor information originating in the brain to be transmitted to the muscles and tissues of the body. It plays a critical role in motor coordination, allowing for fine control and smooth execution of movements.
The prominence of the pyramis medullae oblongatae is indicative of its importance in motor function. It is found in all individuals and its distinct shape aids in the identification and localization of the medulla oblongata during anatomical studies and dissections. Understanding the structure and function of the pyramis medullae oblongatae contributes to our knowledge of the central nervous system's organization and its role in controlling bodily movements.
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(1) Anterior, pyramis (2); (2) posterior, funiculus gracilis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PYRAMIS MEDULLAE OBLONGATAE
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