7.1 POJA-L1264+L1265+L1260+L1262+L1267. Ultrastructure of growth of ovarian follicles (gerbil)
7.1 POJA-L1264+L1265+L1260+L1262+L1267
Title: Ultrastructure of growth of ovarian follicles (gerbil)
Description: Electron microscopy.
This strip cartoon shows in a ‘bird’s-eye’ view in electron microscopy the general development of a rodent primordial follicle onwards. The individual magnifications are irrelevant! The maturing oocyte in (A, B) with a distinct nucleus (1) is surrounded by a single layer of flattened follicle epithelial cells (2) and is therefore also called the primordial follicle.
(C): Part of a vacuolated interstitial cell is present at (6).
(D): The single-layered flattened cells or pregranulosa cells already transform into cuboidal cells (2) and are then called granulosa or follicular cells. Both the granulosa cells and the oocyte contribute to the zona pellucida (4) in a multilayered early pre-antral follicle. Interfollicular fluid starts to accumulate (5) between granulosa cells.
(E): As the oocyte cytoplasm differentiates it enlarges with the formation of peripheral vacuoles (3) towards its maturation.
Keywords/Mesh: female reproductive organs, ovary, ovarian follicle, interstitial cell, oocytes, granulosa cells, zona pellucida, granulosa cells, electron microscopy, histology, POJA collection
Title: Ultrastructure of growth of ovarian follicles (gerbil)
Description: Electron microscopy.
This strip cartoon shows in a ‘bird’s-eye’ view in electron microscopy the general development of a rodent primordial follicle onwards. The individual magnifications are irrelevant! The maturing oocyte in (A, B) with a distinct nucleus (1) is surrounded by a single layer of flattened follicle epithelial cells (2) and is therefore also called the primordial follicle.
(C): Part of a vacuolated interstitial cell is present at (6).
(D): The single-layered flattened cells or pregranulosa cells already transform into cuboidal cells (2) and are then called granulosa or follicular cells. Both the granulosa cells and the oocyte contribute to the zona pellucida (4) in a multilayered early pre-antral follicle. Interfollicular fluid starts to accumulate (5) between granulosa cells.
(E): As the oocyte cytoplasm differentiates it enlarges with the formation of peripheral vacuoles (3) towards its maturation.
Keywords/Mesh: female reproductive organs, ovary, ovarian follicle, interstitial cell, oocytes, granulosa cells, zona pellucida, granulosa cells, electron microscopy, histology, POJA collection