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Explain a mature Graafian follicle in simple short points

BiologyClass 12CBSEAnswered 1 Jun 2026
Answer

A mature Graafian follicle contains an oocyte, zona pellucida, antrum, granulosa cells, theca interna, theca externa, and basal lamina.

A Mature Graafian Follicle:

  • Basal lamina – thin supporting layer around granulosa cells
  • Theca externa – outer protective/supportive layer
  • Theca interna – inner layer that secretes estrogen
  • Antrum – fluid-filled cavity containing liquor folliculi
  • Zona pellucida – protective layer around the oocyte
  • Oocyte – developing female egg cell
  • Granulosa cells – cells that nourish and support the oocyte

Biology · Class 12