Gametes
Referrs sex cells, Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells.
1. Oocytes
Immature egg cell or ovum.
2. Oogenesis
Process of formation of female gametes. Haploid cells.
3. Ovum
Egg cell.
4. Ovulation
Process in which a mature egg is released from the ovary.
5. Zygote
Fertilized egg cell; union of female gamete (egg, or ovum) with a male gamete (sperm).
Gonads; the primary reproductive organs, are the testes in the male and the ovaries in the female.
6. Follicle
A small, fluid-filled sac in the ovary that contains one immature egg.
7. Primordial follicles
Primordial follicle has small oocyte surrounded by follicular cells (granulosa cells).
8. Primary follicle (preantral)
Primary follicle has a larger oocyte than the primordial follicle and is surrounded by granulosa cells. Zona pellucida is present in the primary follicles.
9. Secondary follicles (antral)
Primary follicle has matured into a secondary follicle.
10. Graaphian (mature) follicles; vesicular follicle
Mature ovarian follicle is known as the graafian follicle. It contains secondary oocyte.
Vesicular follicles almost ready to release secondary oocyte (called ovum) in process called ovulation.
Graafian follicle ruptures to release the secondary oocyte, in a process known as ovulation.
11. Corpus luteum
Corpus luteum contains residue of mature follicles after ovulation.
12. Corpus albicans
Corpus luteum degenerates into a fibrous scar tissue called corpus albicans.
13. Spermatogenesis
Process of sperm cell development. Haploid cells.
14. Gametogenesis
Spermatogenesis and oogenesis are term as gametogenesis.
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