Morphological Studies on the Choroid Plexus in Balady Goat (Capra hircus)

Abstract

The lateral ventricle choroid plexus could be subdivided according to its vascular pattern into caudal part, middle part and rostral part (villus fringes), The two narrow bands which arose from the choroid plexuses of the lateral ventricles passed in the interventricular foramen, forming the choroid plexus of the third ventricle, each band appeared under stereomicroscope as down folding liner tufts reaching the level of pineal body. The third and fourth ventricles choroid plexuses consisted of a large number of leaveslike processes connected to a more basal core of the stromal tissue by a stem. Secondary leaf-like elevations might arise from primary leaves. The stromal tissue extended into the leaves accompanied by vessels which brake up into capillary plexuses in the body of the leaves. The highly vascular stroma of the choroid plexus covered with a single layer of cuboidal epithelium almost ciliated, with an average height 9.55 µm. The covering epithelium constitutes about 19.5 %, 31.9 % and 31.8% of the total bulk of the choroid plexuses of the lateral, third and fourth ventricles respectively. Relatively large amount of connective tissue separated the blood vessels from the epithelium representing about 30.1% of the total bulk of the