NEETZoologyHuman Reproduction
Select the correct statement regarding the structures in the Diagrammatic Section view of an ovary:
Options
- AEach primary oocyte then gets surrounded by a layer of granulosa cells and is called the secondary follicle.
- BThe Graafian follicle is the mature follicle ready for ovulation.
- CThe corpus luteum is formed before the ovum is released.
- DThe secondary follicle which is characterized by a fluid filled cavity called antrum.
Correct answer
B. The Graafian follicle is the mature follicle ready for ovulation.
Step-by-step solution
A is incorrect.Each primary oocyte then gets surrounded by a layer of granulosa cells and is called the primary follicle. B is correct. The tertiary follicle further changes into the mature follicle or Graafian follicle.The Graafian follicle now ruptures to release the secondary oocyte (ovum) from the ovary by the process called ovulation. C is incorrect. The ovulation (ovulatory phase) is followed by the luteal phase during which the remaining parts of the Graafian follicle transform as the corpus luteum. D is inc