explain the development of a secondary oocyte in human female from the embryonic stage up to its ovulation name the hormone involved in this process

Question

Explain the development of a secondary oocyte (ovum) in a human female from the embryonic stage up to its ovulation. Name the hormones involved in this process.

Answer 1

Oogenesis

• The ovum (egg) is formed by the process of oogenesis.
• It starts during embryonic growth with millions of gamete mother cells (oogonia) forming in the foetal ovary.
• The secondary follicles are then converted into tertiary follicles that have a fluidfilled cavity called the antrum. At this stage, the primary oocyte present within the tertiary follicle completes meiosis, which results in the formation of haploid secondary oocyte and a tiny polar body.
• This tertiary follicle further changes into the Graafian follicle. The secondary oocyte is surrounded by the zona pellucida.
• Then the Graafian follicle ruptures to release the ovum by ovulation.