At which stage of the development ovum is released from the ovary of the human female?

Ovulation:

1. Ovulation is a process in which the ovum is released from the ovary of a human female.
2. Luteinizing hormone (LH) secreted by the pituitary gland plays a vital role in ovulation.
3. At the onset of puberty, the primary oocyte (2n) undergoes the first meiotic division and develops into a secondary oocyte (n).
4. The ovum is released from the ovary in the secondary oocyte stage. The Graafian follicle ruptures and releases the secondary oocyte.