File:Ovary histology 006.jpg
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Ovary - Secondary Follicle
Secondary follicle Small fluid-filled spaces become visible between the granulosa cells as the follicle reaches a diameter of about 400 µm. These spaces enlarge and fuse to form the follicular antrum, which is the defining feature of the secondary follicle. The oocyte is now located eccentric in the follicle in the cumulus oophorus, where it is surrounded by granulosa cells. The theca folliculi differentiates with the continued growth of the follicle into a theca interna and a theca externa. Vascularization of the theca interna improves, and the spindle-shaped or polyhedral cells in this layer start to produce oestrogens. The theca externa retains the characteristics of a highly cellular connective tissue with smooth muscle cells. The oocyte of the secondary follicle reaches a diameter of about 125 µm. The follicle itself reaches a diameter of about 10-15 mm.
File:Ovary_histology_006.jpg
Ovary, monkey H&E reproductive system, female, secondary follicle, cumulus oophorus, zona_pelucida,_granulosa_cells,_oocyte x20
Ovary histology: Tunica Albuginea x20 | Tunica albuginea, Germinal epithelium x40 | Primary follicle, primordial follicle, oocyte, x40 | Secondary follicle, cumulus oophorus, zona pelucida, granulosa cells, oocyte x20 | Corpus luteum, theca lutein cells, granulosa lutein cells, Loupe | Corpus luteum, theca lutein cells, granulosa lutein cells, x10 | Corpus luteum, theca lutein cells, granulosa lutein cells, x40 | Corpus albicans, primary follicle, primordial follicle, granulosa cells, oocyte x20 | Menstrual Cycle | Ovary Development
Links: Histology | Histology Stains | Blue Histology images copyright Lutz Slomianka 1998-2009. The literary and artistic works on the original Blue Histology website may be reproduced, adapted, published and distributed for non-commercial purposes. See also the page Histology Stains.
Cite this page: Hill, M.A. (2026, October 5) Embryology Ovary histology 006.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Ovary_histology_006.jpg
- © Dr Mark Hill 2026, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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Yi efo/eka'e gwa ebo wo le nyangagi wuncin ye kamina wunga tinya nan
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| current | 22:35, 5 Mayıs 2011 | | 1,280 × 1,024 (424 KB) | S8600021 (talk | contribs) | |
| 22:11, 23 February 2011 |  | 1,280 × 1,024 (340 KB) | S8600021 (talk | contribs) | File:Ovary_histology_006.jpg Ovary,_monkey_H&E_reproductive_system,_female,_secondary_follicle,_cumulus_oophorus,_zona_pelucida,_granulosa_cells,_oocyte_x20.jpg {{Ovary Histology}} {{Template:Blue Histology}} Category:Monkey Category:Genital |
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