File:Blood-thymus barrier EM01.jpg

From Embryology
Revision as of 11:17, 18 July 2019 by Z8600021 (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Original file(1,280 × 1,747 pixels, file size: 375 KB, MIME type: image/jpeg)

Blood-Thymus Barrier - Electron micrograph

This election micrograph from the mouse thymus shows the blood-thymus barrier.

Capillary lumen -> endothelial cell -> reticular cell


Capillary of the mouse thymus cortex. X 27,000.

In this specimen care has been taken to retain the blood in the vascular bed during fixation. The capillary, lumen is wide open and contains both plasma and red blood cells; in the cytoplasm of the attenuated endothelial cells (End), plasmalemmal vesicles are few in numbers.

The vessel is enclosed in a coaxial canal formed by the surrounding thymic parenchymal cells; a macrophage containing residual bodies (asterisks) encompasses most of the circumference of the vessel and sends processes into the vascular adventitia (Adv).

Below and on the left, the parenchymal front bounding the vascular adventia is represented by a process of a reticular cell.


Reference

Raviola E & Karnovsky MJ. (1972). Evidence for a blood-thymus barrier using electron-opaque tracers. J. Exp. Med. , 136, 466-98. PMID: 4115129


Fig. 2. modified in size, contract and labelling.


Copyright

Rockefeller University Press - Copyright Policy This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.jcb.org/misc/terms.shtml). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at https://creativecommons.org/licenses/by-nc-sa/4.0/ ). (More? Help:Copyright Tutorial)


Cite this page: Hill, M.A. (2024, May 29) Embryology Blood-thymus barrier EM01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Blood-thymus_barrier_EM01.jpg

What Links Here?
© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current13:54, 10 May 2018Thumbnail for version as of 13:54, 10 May 20181,280 × 1,747 (375 KB)Z8600021 (talk | contribs)
13:54, 10 May 2018Thumbnail for version as of 13:54, 10 May 20181,640 × 2,613 (478 KB)Z8600021 (talk | contribs){{#pmid:4115129}}