Ultrastructural observation on the tips of growing vascular cords in the rat cerebral cortex |
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Authors: | M Mato S Ookawara |
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Institution: | (1) Department of Anatomy, Jichi Medical School, Minamikawachi, 329-04 Tochigi, Japan |
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Abstract: | Summary The distal ends of the vascular cord in the cerebral cortex are investigated electron microscopically in rats at the 13th postnatal day. The tip of the vascular cord consists of central cuboidal cells (primitive endothelial cells) and surrounding flat cells (primitive pericytes), and has no lumen. The primitive endothelial cells (tip cells) possess several long tentacles which contain only fibrous structures and extend through the neuropile.This study was supported in part by a grant in aid for Scientific Research from the Ministry of Education of Japan (No. 448085). |
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