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Acta Anat (Basel). 1989;134(4):286-90.

The cavum septi pellucidi: a fifth ventricle?

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  • 1Citología e Histología, Facultad de Biología, Universidad de Salamanca, España.

Abstract

The morphological characteristics of the cavum septi pellucidi (CSP) in the rat are described. This structure is formed by a set of cavities generally located in the midline area of the septal region. Into the lumen of the cavities free cells rooted out from the CSP walls were observed. Several layers could be delimitated from the surface of the CSP to the most inner region consisting of connective cells and fibers, and astrocytes. However, no ependymal cells were visualized. According to the morphological data, the CSP wall could have a function of resistance against mechanical tensions that are produced in this brain region. The term 'fifth ventricle' for the CSP seems to be inappropriate.

PMID:
2741657
[PubMed - indexed for MEDLINE]
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