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2015 ; 2015
(ä): 279814
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Histology and Morphology of the Brain Subarachnoid Trabeculae
#MMPMID26090230
Saboori P
; Sadegh A
Anat Res Int
2015[]; 2015
(ä): 279814
PMID26090230
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The interface between the brain and the skull consists of three fibrous tissue
layers, dura mater, arachnoid, and pia mater, known as the meninges, and strands
of collagen tissues connecting the arachnoid to the pia mater, known as
trabeculae. The space between the arachnoid and the pia mater is filled with
cerebrospinal fluid which stabilizes the shape and position of the brain during
head movements or impacts. The histology and architecture of the subarachnoid
space trabeculae in the brain are not well established in the literature. The
only recognized fact about the trabeculae is that they are made of collagen
fibers surrounded by fibroblast cells and they have pillar- and veil-like
structures. In this work the histology and the architecture of the brain
trabeculae were studied, via a series of in vivo and in vitro experiments using
cadaveric and animal tissue. In the cadaveric study fluorescence and bright field
microscopy were employed while scanning and transmission electron microscopy were
used for the animal studies. The results of this study reveal that the trabeculae
are collagen based type I, and their architecture is in the form of tree-shaped
rods, pillars, and plates and, in some regions, they have a complex network
morphology.
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