File:Ova20he.jpg

From Embryology

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Ovary - Antral Follicle

(Stain - Haematoxylin Eosin) Histological image of an antral (tertiary) stage of follicle development in the ovary.


There are several different nomenclatures for the stages of follicle maturation. It probably does not matter which naming system you use, as long as you are consistent and use the same set of terminology for all stages. Early stages of follicle development appear to be gonadotropin (Gn) independent and with development become gonadotropin "sensitive" and then "dependent" . (UK spelling is gonadotrophin).


  • Primordial Follicle - Alternate nomenclature: small follicle or type 1, 2, 3 (25cells)
  • Primary Follicle - Alternate nomenclature: preantral follicle or type 4 (26-100 cells), type 5 (101-300 cells)
  • Secondary Follicle - Alternate nomenclature: small and large antral follicle or type 6 (3001-500 cells), type 7 (501-1000 cells)
  • Preovulatory Follicle - Alternate nomenclature: Graafian follicle or type 8 (>1000 cells)
  • Atresia - At any one time the majority of follicles are destined not to complete maturation and at any stage (from type 4-7) degeneration of the follicle can occur.


Links: Oocyte Development | Ovary Development

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. (2024, May 28) Embryology Ova20he.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Ova20he.jpg

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

Original file name: Ova20he.jpg

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current16:30, 6 May 2012Thumbnail for version as of 16:30, 6 May 2012450 × 600 (96 KB)Z8600021 (talk | contribs)
11:16, 28 July 2009Thumbnail for version as of 11:16, 28 July 2009300 × 400 (59 KB)MarkHill (talk | contribs)Ovary Histology Source: UWA Blue Histology