SEPTUM PELLUCIDUM Meaning and
Definition
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The septum pellucidum is a thin, translucent membrane located within the brain, specifically in the region between the two lateral ventricles. It is formed during embryonic development as the midline structure that separates the anterior horns (frontal parts) of the lateral ventricles. The septum pellucidum consists of two parallel layers of white matter, which contain nerve fibers that connect different areas of the brain.
Anatomically, the septum pellucidum has two main parts: the septal laminae and the septal veins. The septal laminae are the two layers of white matter, while the septal veins are a group of veins that run within the membrane.
Functionally, the septum pellucidum is involved in the regulation of cerebrospinal fluid (CSF) circulation and the maintenance of brain structure. It also plays a role in interconnecting brain structures and facilitating communication between different regions.
Abnormalities or malformations of the septum pellucidum can occur, although they are relatively rare. These can include variations in its shape, size, or thickness, such as agenesis (absence), fenestration (splitting), or cyst formation. These abnormalities can sometimes be associated with other neurological conditions or developmental disorders.
Overall, the septum pellucidum is an important anatomical and functional component of the brain, contributing to its structure, communication, and fluid circulation.
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Transparent septum, s. lucidum, a thin plate made of two laminae of gray matter, forming a partition between the anterior portions of the lateral ventricles; it extends from the anterior part of the body, the genu, and the rostrum of the corpus callosum to the fornix; the space between the two laminae is the fifth ventricle.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SEPTUM PELLUCIDUM
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- sepyum pellucidum
Etymology of SEPTUM PELLUCIDUM
The word "Septum Pellucidum" is derived from Latin.
"Septum" means "partition" or "wall", referring to the structure that separates two parts or cavities. "Pellucidum" comes from the Latin word "pellucidus", which means "transparent" or "clear".
Therefore, the combined term "Septum Pellucidum" refers to a clear partition or wall within the brain.
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