File:Berkeley1905 fig02.jpg
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Fig. 2. Transverse section of the pregnant tube approaching the gestational sac
A. Trophoblast cells invading the longitudinal muscle coat. Note the tendency to concentric delamination of the muscle fibres.
Fig. 2 illustrates a section taken some 0.7 mm nearer to the gestation sac. Fetal cells (trophoblast) are just beginning to appear in the inner portion of the longitudinal (outer) coat of the muscular wall of the tube.
These cells, which from their large size and deeply-stained nuclei strike the eye at once, are lying in and around somewhat crescentic spaces, formed by delaminations of the outer longitudinal muscle coat. The whole tube is thickened, this being partly due to increase in its muscular elements and partly to an appearance of oedematous swelling aflecting the connective tissue between the muscle bundles.
It will be noted that the earliest signs of the fcetal cells in this section are on the side towards the mesosalpinx.
Two large arteries cut in transverse section are seen where the tube joins the mesosalpinx.
Reference
Berkeley C. and Bonney V. Tubal Gestation - A Pathological Study. (1905) Brit. J. Obst. and Gyn. 7(2): 78-96.
Cite this page: Hill, M.A. (2024, May 11) Embryology Berkeley1905 fig02.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Berkeley1905_fig02.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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