The Blood Capillaries in the Subodontoblastic Region of the Human Dental Pulp, as Demonstrated by Freeze-Fracturing
作者:
KölingAnders,
RaskHelge,
期刊:
Acta Odontologica Scandinavica
(Taylor Available online 1983)
卷期:
Volume 41,
issue 6
页码: 333-341
ISSN:0001-6357
年代: 1983
DOI:10.3109/00016358309162344
出版商: Taylor&Francis
关键词: Freeze-fracture;dental pulp;blood vessels;endothelial cells;ultrastructure
数据来源: Taylor
摘要:
The microvasculature of the subodontoblastic region in the human dental pulp was studied, using freeze-fracturing. This technique allows an analysis of the fine structure of the vascular endothelium with special reference to the membrane structure. The blood capillaries were noted to be of the non-fenestrated or continuous type, although a few fenestrated vessels were observed. The endothelial plasmalemma often exhibited bundles of fibrillar structures, presumably myofilaments. There was a relatively large number of micropinocytotic vesicles and the interendothelial spaces were closed juxtaluminally by tight junctions (zonulae occludentes). The junctions appeared mostly as two to four strands, seen as ridges or grooves on the cell membrane. Thin-walled, irregular, tissue channels lacking the typical, blood-vessel configuration were disclosed. These vessels were believed to represent lymphatics.
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